I've done both the 3.4 And the 3800SC. the 3.4 doesn't get any easier (pull out the 2.8 bolt in the 3.4) (except drilling the 2 holes for the starter), and can have more "seat of the pants" power. (Not like the 3800SC), But it is SOOO MUCH EASIER, and ALOT, ALOT Cheaper. Got deep pockets ? (always cost twice what you "Figure") And a lot of Down time. In the end, Yea, the 3800SC is great, but expensive (Even doing everything your self)
Swapping in a 3.4 from a 93-95 Camaro or Firebird is as easy as pulling your stock engine and putting it back in. Rodney's starter relocation jig is designed for the do-it-yourselfer. He's gone to great efforts to be sure it works for you.
Keep in mind that if your original engine isn't an 88, you will have to use a flywheel or flexplate from an 88 Fiero or from a 3.1 equipped car if you install a 3.4. The flywheel or flexplate should not have chunks of weights welded to its backside.