Tremec 5spd - best dealer/advice for AD truck installation

[Hampshire]

Later this fall we're putting a new GM crate motor in my 49 Chev truck and will be putting Tremec 5 spd behind it.

Looking for who is the best to put a package together for us. Not sure which gear set, yet, but will be using the midshift kit and putting together a hydraulic clutch.

A quick Google search comes up with a few names ( and some pieces of the for Keisler engineering here and there).

- Silver Sport Transmissions

- Modern Driveline

- Jam performance Transmissions

- Liberty Gears

Any recommendations???