Hey guys, I bought a used E36 with an M50 /manual transmission and started the repair process. I found that it was ran with very little oil and overheated. The pistons were severely damaged! one had a hole big as a quarter, two others had holes waiting to happen, and the other 3 had severe scuffing. I have already discarded the pistons. My question is: What other parts are serviceable? part of me wants to discard everything except the block & cylinder head & build a nice motor with all new components but my butt cheek (the one with the wallet pocket) has already been sanded and that would just hurt!
The rods show wear on the piston end, are these bronze bushings replaceable? or should I toss them?

I have rebuilt engines in the past, but never any failure this severe, what parts would you toss and keep?