yeh they do go for that price sometimes i was lucky enough to get my second z for that price although it was quite rusty, its taken nearly 2 mounths to cut the rust out and glass and weld the rust holes and the was some bigens so for about an extra $500 of sheet matal, welding rods, glass and some blade putty im now upto $1000 minus seats and carpet and its still unpainted.
as for my first z its cost bout $5000 and it has reconditioned struts $500, recon front end $500, new exaust (yet to be put on), recon 350 holley $120 (its too small need bigger), new/old simmens rims $300, new carpet $200, new tyres $680, new gbox $300 but the price riped me and moved to uk so ill need a new one again plus bits and peices valued at bout $150, so in total money spend rebuilding =$2750 plus $2650 for the car hears some pics still more to do and the spoked rims are no longer on the car but still have them