I have a 1990 300ce 24 valve with CIS injection. I plan on swapping in a 95-97 c36 engine. I know that the 3.6 has HFM injection which creates a bit more work for the swap. I plan on using a 3.2l or 3.6l ecu with a w124 e320 wiring harness. Is there anything else I would need to swap out to make it run like a champ? ...or even run at all

I also plan on putting in a 717.404 16v getrag transmission.
is there any electronic modifications needed for this?

also what differential would you recommend for my set up?

Any information, tips or opinions you have about this swap would be greatly appreciated.