Don't know anything about wireless, but germanium Fuzz Face type pedals (basically any fuzz/distortion with germanium trannies such as the NKT275 that a lot of Fuzz Faces had) should be FIRST in line, before anything else. It needs to react to the direct signal from your guitar or it will not function properly or just sound like shit. I think germ. tranny pedals need to use Carbon Zinc batteries to sound their best.
There are silicon transistor versions of the Fuzz Face type pedals also (like the Hendrix FF which uses BC108 trannies), and I believe those can be anywhere in the chain.
Dave, correct me if I'm wrong, but I think wahs can be modified to be germanium fuzz friendly, in which case you could maybe run the wah before the fuzz, but I'd put the fuzz first, even before compression.