96 dohc swap help needed

so i am a mechanic at a busy shop in cali. i own a 1996 mustang gt. recently we had a 03 mach 1 in with a rod knock. their insurance company has paid for a new engine or at least a complete used one i should say. so this old 32v has a proud new owner. well i guess first thing is first i need a crank and ford wants over 1200 for it at my cost. does any one know where i could find one? second i know the engine will bolt in with some minor hoses and radiator changing. no big deal, but does anyone know what part of the harness i need to modify if any at all and will my stock 96 ecu work with this engine, of course a tune would be involved, but if not neccesary i would wait until it was running, any help is aprecciated thanks.

yeah thanks, i did some research and found that the alluminum block is 81 pounds lighter and supposibly the mach came with a forged crank,rods and pistons. much more stronger than my 2v iron block with hyperutectic pistons and probably some cheep steel crank, but who knows money is the deciding factor. so you dont think my stock fule rail would work as long as keep the injectors off this engine? and i will fo sho put some crazy pics up from the build keep lookin.

k, so as far as the engine goes i have the crank at a machine shop being turned, and i just installed the other engine in the mach one, looks like the engine harness will plug into my factory plug, and my injector rail will go on the mach one manifold with the new injectors. my question now is will the stock 96 cpu work with the dis and mach one engine? have checked out the cpu # and ford used basicaly the same cpu from 96-04 does anyone know otherwise?