TH400 to NV4500.........I got a few ???

[Chevy3+3]

I want to say first that I have read through several swap threads and couldnt decide which way might be the easiest to accomplish this swap with my current drivetrain.

My setup 88 V30 CC 454 TH400 NP205. My TH400 is about to bite the dust and the gift of overdrive would be awesome in my opinion

I located a 94 model NV4500 from a K2500 4x4.

I believe it should mate up to my np205 because both should be 32 spline units if I am not mistaken. (correct me if I'm wrong)

My biggest questions are.....

1. If the NV4500 will mate to my 205 without any adapters or spacers will the combo of the nv4500/205 be longer than the TH400/205 combo?

2. Will I have the option to run hydraulic or mechanical clutch linkage? The reason I ask is because I'm sure the mechanical linkage would be cheaper if I can use that

3. What bell housing will I need? Am I required to buy a special made bell housing to go from the 454 to the nv4500? Or can I find and use a factory bell housing from salvage?

4. What years of trucks should I be looking in for a set of pedals? I may have access to a set of pedals but I believe the truck is a early 80's model.

5. Will my Auto transmission hump be high enough to clear the NV4500?

Any help is greatly appreciated. Thanks