just confirming that you simply kept the orig car's DME, EWS, Keys all together and in car.

I assume you did, but we see all kinds of folk trying to install the donor engine's DME, EWS & keys

Also just an ask, did you pull engine and tranny out the bottom, front or top?..Did you have a lift?

I may be pulling a 3.0 out the bottom of an E53 soon.