Found a trace of this over on the Tagboard Forum. It appears to be a highly modified Fuzzrite with an added gain recovery stage and a lot of value changes. The Saturation pot increases the output cap of the first stage, and the Fuzz pot is a pregain control. Originals use PN2222 transistors for Q1-2, which is a TO-92 packaged 2N2222A, so either will work just fine. Here's the schematic for reference and I there are fabricated boards for this in the store.