FilterFX PCB, complete with two Xvive VTL5C3 vactrols, two Salecom T812 three-position (On-On-On) DPDT switches, and a Druid STOMPLFO chip. This PCB+parts set is all the more-difficult-to-obtain parts. You might also want the FilterFX pot set which includes four of the right-angle PCB mounting 10K Lin potentiometers which make the build very easy.
The PCB is designed to fit into a Hammond 1490BB enclosure in landscape format, and can be used with PCB mounting pots for a simple, reliable construction.
The PCB is FR4 fibreglass for strength, with plated through-holes and green soldermask and white screen print on both sides. The PCB layout can accept film capacitors with either 5mm/0.2″ or 7.5mm/0.3″ lead spacing, so you’re not limited in your choice of capacitors.
There’s a lot more details including sound samples, and links to the schematic and the construction guide over at the project page for the FilterFX.