For anyone looking for a C3, or related parts, take a peek at what is up for auction on Bring A Trailer (bringatrailer.com). Enter Corvette C3 in the search window to zero in on the C3s or click on the links below.
I would like it to be known that I do not endorse Bring A Trailer and I do not benefit in any way from posting the links below. It's just fun to look at all the different vehicles that pass through, especially Corvettes. BaT is one of many, many outlets for buying and selling vehicles. Vehicle prices vary greatly across all the available outlets so do your homework before bidding/purchasing to insure you get a price that you are comfortable with.
Ended...
... September - 26 cars
9/30 - No Reserve: '80 Chevrolet Corvette - automatic - sold for $11,850
9/29 - '81 Chevrolet Corvette - automatic - sold for $11,100
9/28 - '71 Chevrolet Corvette LT-1 4-Speed - sold for $30,250
9/26 - '68 Chevrolet Corvette Coupe 327 4-Speed - sold for $13,250
9/25 - No Reserve: '78 Chevrolet Corvette 25th Anniversary Edition - sold for $15,300
9/24 - '68 Chevrolet Corvette Coupe 427 4-Speed - sold for $57,500
9/24 - '75 Chevrolet Corvette Convertible - automatic - sold for $18,250
9/23 - '79 Chevrolet Corvette L82 4-Speed - sold for $23,000
9/22 - '82 Chevrolet Corvette - bid to $13,250 (*rnm)
9/19 - '79 Chevrolet Corvette - 27-Years-Owned - 383-Powered - automatic - sold for $11,500
9/18 - '79 Chevrolet Corvette - automatic - sold for $13,800
9/17 - '69 Chevrolet Corvette Coupe L89 427/435 4-Speed - bid to $132,000 (*rnm)
9/17 - '75 Chevrolet Corvette Convertible - automatic - bid to $18,000 (*rnm)
9/16 - No Reserve: '76 Chevrolet Corvette L82 4-Speed - sold for $24,000
9/16 - '70 Chevrolet Corvette Coupe 4-Speed - sold for $27,000
9/15 - No Reserve: '82 Chevrolet Corvette - sold for $10,500
9/11 - '70 Chevrolet Corvette Convertible 4-Speed - sold for $33,888
9/11 - '69 Chevrolet Corvette Coupe L88 4-Speed - sold for $631,000 WOOF_DA...!!!
9/9 - '69 Chevrolet Corvette Coupe 4-Speed - sold for $18,100
9/9 - '76 Chevrolet Corvette - automatic - bid to $13,000 (*rnm)
9/8 - No Reserve: '81 Chevrolet Corvette - automatic - sold for $10,275
9/7 - '82 Chevrolet Corvette - sold for $15,000
9/4 - '69 Chevrolet Corvette Convertible L68 427/400 4-Speed - bid to $50,000 (*rnm)
9/3 - '72 Chevrolet Corvette LT-1 4-Speed - bid to $47,350 (*rnm)
9/2 - '70 Chevrolet Corvette Coupe L46 350/350 4-Speed - 46k Miles - sold for $40,470
9/2 - No Reserve: '69 Chevrolet Corvette Coupe 4-Speed - 427-Powered - sold for $26,000
... August - 15 cars
8/31 - '70 Chevrolet Corvette Coupe - automatic - sold for $42,000
8/30 - No Reserve: '72 Chevrolet Corvette 454 4-Speed - sold for $36,500
8/26 - '71 Chevrolet Corvette Coupe 4-Speed - sold for $19,000
8/24 - '72 Chevrolet Corvette Coupe 4-Speed - 23-Years-Owned - sold for $23,250
8/24 - '77 Chevrolet Corvette L82 - automatic - sold for $16,750
8/23 - '68 Chevrolet Corvette Coupe 427 4-Speed - sold for $45,500
8/19 - '78 Chevrolet Corvette 25th Anniversary Edition - 355-Powered - automatic - sold for $11,501
8/16 - '82 Chevrolet Corvette Collector Edition - 6k Miles - sold for $24,250
8/16 - '76 Chevrolet Corvette 4-Speed - One-Owner - sold for $16,500
8/11 - '68 Chevrolet Corvette Coupe - automatic - bid to $15,000 (*rnm)
8/9 - '78 Chevrolet Corvette Pace Car Edition L82 - automatic - bid to $18,000 (*rnm)
8/7 - '82 Chevrolet Corvette Collector Edition - sold for $35,000
8/6 - '70 Chevrolet Corvette Coupe 4-Speed - bid to $32,500 (*rnm)
8/3 - '78 Chevrolet Corvette Pace Car Edition - automatic - sold for $22,000
8/3 - No Reserve: '82 Chevrolet Corvette - sold for $19,100
... July - 22 cars
7/30 - '72 Chevrolet Corvette Coupe - automatic - sold for $30,003
7/30 - '82 Chevrolet Corvette 5-Speed - 383-Powered - sold for $27,250
7/29 - '70 Chevrolet Corvette Coupe LS5 454/390 - automatic - sold for $35,750
7/28 - '78 Chevrolet Corvette L82 25th Anniversary Edition 4-Speed - bid to $23,750 (*rnm)
7/23 - '78 Chevrolet Corvette L82 - automatic - sold for $16,000
7/22 - '68 Chevrolet Corvette Convertible L71 427/435 4-Speed - bid to $80,500
7/21 - No Reserve: '82 Chevrolet Corvette - 20k Miles - sold for $17,000
7/20 - '80 Chevrolet Corvette 4-Speed - sold for $31,250
7/20 - '74 Chevrolet Corvette Coupe - automatic - sold for $9,600
7/19 - '78 Chevrolet Corvette Pace Car Edition - 6 Miles - automatic - sold for $55,000
7/18 - '78 Chevrolet Corvette 25th Anniversary Edition L82 4-Speed - sold for $16,777
7/16 - '72 Chevrolet Corvette Coupe LT-1 4-Speed - sold for $45,500
7/15 - No Reserve: '70 Chevrolet Corvette - automatic - sold for $21,750
7/13 - '82 Chevrolet Corvette - sold for $35,250
7/12 - '70 Chevrolet Corvette Coupe 4-Speed - sold for $28,750
7/11 - '78 Chevrolet Corvette 25th Anniversary Edition - automatic - sold for $18,500
7/9 - '71 Chevrolet Corvette Coupe LS5 454/365 4-Speed - sold for $44,000
7/9 - '69 Chevrolet Corvette Convertible L88 4-Speed - bid to $480,000 (*rnm)
7/6 - '68 Chevrolet Corvette Sportwagon 5-Speed - 572-Powered - bid to $25,000 (*rnm)
7/5 - No Reserve: 1977 Chevrolet Corvette - automatic - sold for $9,000
7/3 - '82 Chevrolet Corvette - bid to $7,500 (*rnm)
7/3 - '70 Chevrolet Corvette Coupe 6-Speed -Supercharged LS2-Powered - sold for $56,000
*rnm = reserve not met