Looking at a new truck tomorrow what should I look for?

[chevyman95]

Found a truck in SC that I am going to look at tomorrow. It is a 66 short bed fleetside with the big back window. My grandpa had one of these and I have always wanted one. It looks good in the pictures and already has a 5 lug conversion with disks in the front. Definitely not a show truck but a solid driver. 350/TH350. The guy is asking $8000 for it. I'm going to see if I can get it for around 6500-7000 to give me some room to do some work to it. This would be my first 60-66 (had a few 80s models) What should I be looking out for? He says it has no rust holes but a few little knicks and bumps here and there. Minor surface rust in some areas. Could use paint but drivable as is.