'92 paseo engine swap

I have a 1992 paseo that my daughter ran out of oil about 2 years ago. It has sat until I had time to mess with it. I recently purchased a 4efte with auto tranny and cut harness. The wiring looks like it is gonna be a night mare. Also the exhaust is not an exact match. I understand that the ecu will also need switching.

I’m new at this but pretty handy with a wrench. Is there a company that might make a sort of patch harness to go between the paseo harness and the 4efte engine? Do I need to replace the ECU or is there a covertor for this? The exhaust thing I think I can figure out.

In surfing through what I can find it appears that many front mount their intercoolers. Is there an advantage to this?

Any and all help is most welcome.