Thanks for the quick replies!
S54 - The purist in me wants to swap to a period motor and not blend generations.
S50B32 - Would your view be different knowing I'll drive <5k/yr and I get 25% off parts?
S50/S52 - What setup do you think is best value for power? What about OBD1 S52?
My use will be casual driving on my free time (if I ever get any!). Basically, after owning my Stg1 B5 S4, the e36 feels too slow (although it handles much better).
Daily: '06 S4
Wife: '05 X5 4.4i
Fun: '95 325is