diesel cutlass

Hey all i got an LM7 5.3 that ive rebuilt and am putting in my 97 gmc sierra that currently has the factory 4.3 with the 5 speed. plan on keeping the 5 speed in the truck i have most everything i need to drop it in. i bought motor swap mounts and went to mount them on the engine only to find the mount didnt clear the AC compressor and bracket. Is there a relocation bracket to relocate the compressor and is it possible to make the original AC system work since it works well now? since its my daily i would like to keep the AC otherwise id just save myself the hassel and eliminate it completely. also with this swap will i need to buy a different tranny crossmember? Thanks