Sm465 Swap Questions 1977 K10 short bed

[84 400]

Well I was out fourwheeling Sunday and my th350 took a crap. IT sucked had to get the truck towed 70 miles home. I am done with automatics!

I have a 3 day run coming up this weekend and would like to make it but have a lot of work ahead of me. I have been reading up on this swap for quite some time but still need some adivece and a few questions answered.

Parts I have:
All cast Iron SM465 out of a 1977.
Hydro clutch bell housing
Hydro Clutch Fork
Hydro clutch pedal set up
Adapter to np205
!0 spline coupler
10 spline input shaft for my Np205
Flywheel

Still Need
Clutch ,
Pressure plate
Throw out bearing
Piolt bushing
Master
Slave
Line
Reverse light wiring

Questions:

Will a Hydro set up work with a 3 finger clutch set up or does it need a diaphragm style clutch?

Does this use a pilot bushing or bearing? I am firmilar with the bushings but have never dealt with the bearing style.

A flywheel uses different bolts to connect to the crank shaft then a flex plate correct?

I don't have gaskets for the adapter between the Trans and T case. Should I attempt to cut some from gasket paper or just use RTV?

Thanks For any help you can provide!