Regarding "Full Frontal Assault", Gary sold the routine in a pamphlet form at his lectures in the late '80's, early'90's. There were four pamphlets at the time, another had an earlier version of "Flurious" than appeared in "Unexplainable Acts". I recently saw these being sold by some dealer, although the focus of the ad was on Gary's later (and also essential) notes on standup material and misdirection.
If you're still interested, I'd suggest a call or email to Richard Hatch of H&R Books, or suggest to Richard Kaufman that now would be the right time to collect all of Gary's pre-mentalism stuff into one big book. The material is fresh, it's fabulous, and he is apparently (and sadly) done with it.
The introduction to "Full Frontal" deserves more attention. In it, Gary Kurtz introduces a paradigm-shifting idea, one of those rare insights that changes not your methods, but your goals. He posits an entirely new way to look at the experience of coin magic.
Briefly, he suggests that the cumulative effect of a multi-phase routine can create the greater, overall effect of a sustained pleasant hallucination. This does not occur if you are locked into the mindset that magic is the performance of single tricks as puzzles. Instead, you step back, and the audience steps back with you, and you both see the bigger picture.
And what a picture it is. Happy hunting, and if H&R can't help you, or point you in the right direction, maybe Danny Archer has the early lecture notes?