Need quick rundown 5.7 hemi apart

Tomorrow morn I'm sposed to look at a dissasembled 5.7, "fairly complete." He claims he doesn't remember what was wrong possibly a rod noisy, ended up putting another used engine in the truck

So this is torn down. I don't know for sure what his engine skills are, I don't know if I'm bein' played

1.......What do I look for other than usual? These prone to any cracking, etc, or other "5.7 specific" problems?

2......If I buy this what is "different" about these? I know you need new head bolts, EG, if this turns out to be an "easy" overhaul what about does a gasket kit cost?

3......This is claimed less than 140K miles. He wants 300. Sound like ex manifolds might be gone. He says injectors are there but was unsure of the intake. So it might be. He states its a core
This a good price? "Around here" it seems to me it is.