"Anyone with advice either way on the bounce box? What's the best way to resupply alcohol for my stove? should I just buy full bottles of Heet?"

Bounce box: if you have an at-home logistics person, then I wouldn't. If you don't, you could consider it.

Alcohol resupply: if you haven't bought Yogi's Guide, then get it --- it tells you current info on a host of things, including that. Bottom line: a full bottle of HEET isn't bad, it just depends on the stretch. I don't like those little yellow bottles anyway and decant to a pop bottle; if you're around other thru-hikers, just buy the right amount to split amongst you. Sometimes you can buy fuel by the ounce, other times you can leave excess in a hiker box.

But get Yogi's Guide.
Brian Lewis