Congratulation rkell on your purchase.

The sump on the 3.7 is not the problem which it is on the 3.0L. Clearance is much improved.

The kingpins can be changed with the engine in place as all the work is under the front fenders.

I would insulate what you can under the hood. Especially the brake master cylinder and consider applying reflective foil to the bulkhead, and maybe a heat barrier in the footwells.......

More advice will surely follow!

DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4