Whew.... um.... (mostly) good post, all!
I have a full NOS powershot kit, so I have a nozzle that mixes the fuel/nitrous correctly... for simplicity's sake, I think I'll just mount it partway down the accordian tube (which is actually a Weapon R hard pipe on my car). As others have stated, I'll risk a slight power loss in order to assure a good mix.
Fuel pressure safety switch, window switch, and purge are on the way. The bottle heater will be a later addition... I live in a constantly-warm climate (Los Angeles), but it's still a good idea.
