if you are swapping everything I would say nothing make motor mounts and get the tranny set up you need. Don't quote me on that but that pretty much sounds like a direct motor swap no wiring or anything. You will most likely have to change the tank or put a fuel cell in it with an inline pump because it will needs more fuel than an re and for odvious reason a 22r pump will not work lol. I would say thats it because the mojority of it will be the cab swap itself. I would do the motor first with the tranny and cases all that because it will be easier making everything then pull it and start on the cab plug everything in turn key start.