Calvert split monos and Cal-tracs work really well. Buy the best double adjustable shocks you can afford, but the Calvert 9 positions will work fine to begin with.
You don't need a lot of gear with a stroker. I would do the 3.73's.
Do you remember the spring length to use with offset shackles?
I use 20" front segment springs but keep in mind mine is a '63 B-body and, on those cars the spring length is the same as an A-body. Not going to be the same as yours.
Call Calvert Racing and they can walk you through the proper selection for your car.