How difficult was it to register a rod in Mass which was purchased out of state?

I've been to the RMV site and done my reading but... realistically what kind of experience is this going to be? Talking about a clean title 40's pickup w/ stroker 383, 350 trans, DB, Fuel Cell in bed, Turn signals, seat belts.

Are they going to want to send me through an inspection or am I completely exempt?

When I moved out here almost two years ago went through the whole RMV-1 form where Mass essentially throws out your previous state title number and replaces it with their own. It's only one form but needs to get notarized by the insurance company, yadda yadda. Just hoping there isn't any issue with an inspection and some square looking the truck and denying me because it's not the original engine so is therefor a "custom car".