They know the tranny's
Well don't have a compression tool or welder. And I wasn't necessarily interested in mailing my trans somewhere.Depends on how much you farm out.
I'd automatically suggest having TEP do the channel plate and valve body. Most trans places don't have the tools to put in the fixes/upgrades, TEP does. For what it comes with..it's very reasonably priced.
Clutch compression tool
input/3rd housing teflon seal resizer - or have TEP do them
An engine stand with a bracket (easy to make if you have a welder handy)
From there it depends if you need to replace bushings etc.