This Pedal is currently available.
David Gilmour-style modified Big Muff
The Numb2 by Kalavera FX is based on the Cornish G2, which is in turn based on the Big Muff. It uses 2 sets of germanium diodes and one switchable set of Schottky diodes, which gives it a less pronounced mid range notch and a more drive-like sound. It also features a low cut toggle switch. The Numb2 is able to achieve everything from cool and smooth overdriven tones to sweet sustained leads.