727 transmission rebuild time

So a few weeks ago I made a post about a 727 trans issue.. Well trans finally lost drive an reverse is failing... I'm planning to rebuild it an was searching parts and upgrades I could do and come across a company named SMR an they offer a modular style kit where everything is rebuild or replaced. Valve body comes with a shift kit installed. Just take apart and install new parts. Anyone ever used one of these kits before? The pricing was around what I was goin to spend putting together a parts list... Who do you all use?