Bear in mind that there are 2 different versions of Deluxe Big Muffs - the one with the Blend switch, and the one with the Series/Parallel switch.
I’ve owned both, and ended up selling the Blend switch version and kept the Series/Parallel version.
The Series/Parallel version allows you to place the compressor in front of the fuzz in a series, which makes for some outrageous sustain. If you can hold out for one of these versions, it’s worth the wait.
However, you can always mod the Blend switch version if you are daring http://hammer.ampage.org/files/Device1-7.PDF