brake booster recommendations

[Snake72]

So I've been shopping for brake booster w/ master cylinder and prop valve combos and i'm seeing a lot of mixed reviews of the CPP and POL units. Leaking, poor fit, wrong rod, etc. Read a few good things about Tuff Stuff. Anybody have recommendation on direct replacement???

Truck is a 72 with factory power disc/drum. Old unit was leaking and I have literally replaced every single brake component on the entire truck, booster is my last piece.

Also, whats the difference between delco and bendix boosters? Do I get single or dual diaphram? stock 11" booster? I dont really want to drop 500 on a wilwood unit but they sure get great reviews