I'd expected the year to be the same or older than the vette when I asked. Seeing it's a 95 then unless he's got a blown motor or a 4.3 I'm not sure what the advantage here would even be... That said, it's pretty much plug and play. Just use all the accessories and electronics from yours(if it's a 350) and you're good to go.
Cam and Opti updates are good ideas as mentioned above.
Need to reuse your caprice crankshaft hub as well. btw people will pay good money for a complete corvette accessory setup so don't throw anything away. The corvette layout is a lot easier to swap into older cars.
Trans on the 93 Corvette is indeed a 4L60 and the Corvette tailshaft housing is different from the b-body. Also 93s are speed density (no MAF) so reuse your caprice wiring harness/ ecm. Basically I'd use the corvette block and heads, caprice everything else.