> I've acquired some acetazolamide(diamox is too expensive for my ins) rx too

Acetazolamide IS Diamox. So you are covered there. The recommendations are to start taking it before you get to altitude, so take it before you feel any symptoms. Wouldn't hurt to take two doses at home to make sure you don't have any odd side effects.

Hosreshoe Meadows is technically one-night-only, so camp then move to another spot. It will not be crowded.