2005 Rincon

Hi,
I'm new to this on-line forum and the broken 2005 600cc Rincon,
auto/man trans. i got from a idiot that let the oil run low/empty and tore up a lot of parts inside.. (oil pmp, chains,sensors, etc..)

we've been seeing that Most of the new parts we've been buying have been changed and/or upgraded and i'm not happy with what we've been seeing so far working on this thing.

i need/want to know if I'm waisting my time/money on this thing and if i should get rid of it while i still can or, is it worth fixing it ??

David