That truck looks hammered. I wouldn't pay over $2000
I know a guy who bought the same truck only 351 and a c6. truck was pretty beat up but dependable at 300k. he paid 6200!
I think for 2k more you get a lot better truck
http://cgi.ebay.com/ebaymotors/1993...Cars_Trucks&hash=item2eb106dd0d#ht_500wt_1182