How much do you think this 70s Corvette would cost in upkeep for a year?

[Bob]

How much would it cost to upkeep this car, on average per year? How much would repairs cost? How much would gasoline cost? And, how much would these prices differ if someone knew how to do basic "weekend" repairs or didn't?
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=280583455445
Thanks alot! Any information will be helpful
Let's say I drive it 6000 miles in a year.