bout to go look at a 82 6.2 diesel

[1968CHEVYC10]

I found a motor on craigslist, I talked to the owner on the phone. The motor has already been pulled. I want to make sure it's complete. what all should I be looking for? Also my truck has a manual transmission with a mechanical clutch linkage, it's got a 350 with rams horns, clearance for the linkage is pretty tight already, and with rear dump manifolds like I believe the 6.2 has I don't think it would fit. Would the rams horns fit on the 6.2? Thanks yall!