Ls swap questions

[Plunkett]

I've searched on here and everytime I seem to read some good info on motor mouts I read something else that throws me off. I need some suggestions. I'm working on a 72 chevy c10. I plan on putting a 5.3 engine into the truck mated to a th350 tranny. My goal is to mount the engine in the stock location so that it bolts up to my tranny and so I will be able to run the stock mechanical fan. I also want to be able to run headers. I don't mind spending the money on the new mounts like early classic offers. Also, I'd like to be able to run the dynatech 2nd gen fbody headers or 4th gen headers on this truck to keep cost down.