FINALLY got my donor vehicle...couple of questions

[ain't_done_yet]

Well, after buying my '82 SWB a few years ago (w/out motor) and parking it in the shed, I found my donor vehicle...a '99 Burb w/5.7L...it was rolled and I'm getting EVERYTHING (bumper to bumper) for $450!! Picking it up tomorrow. My plans are to move the motor, tranny, and computer/wiring to the '82. Of course, fuel supply/tank issues will be taken care of at the same time.

Here's my first question...will I need different motor mounts?? If so, who's got the best at the best price? I will also be going ahead and replacing the head gaskets and may install some headers while the engine is out.

Thanks ahead of time and I'll try and keep the SLOW progress updated.