I have an OR1 MaxPak, used once, for sale. This was literally used ONCE, at Blunder Hole in Jackson Co, AL where I had to carry several ropes to the bottom of the cave and put them in a drybag to keep them dry.
This pack is actually the first MaxPak he built; I asked him to build a copy of the classic Howie's Harnesses "Vampire" pack out of the toughest PVC-like material he could find, and he liked the result so much he added it to the OR1 product line. When I bought this one last year it was initially called the Mega, but Bruce changed the name. It's large enough to fit a darren drum (cur-tec barrel) and made from a very stiff, tough material. Using aquaseal (or seam grip) on the seams would make it reasonably waterproof.
Specs are here: http://onrope1.com/store/index.php?p=pr ... &parent=12
I have modified it slightly by removing the large handle in the middle of the back, which I found to be quite uncomfortable.
Great pack, I just never carry this much stuff anymore, except for camp trips where I use my expedition-size pack.
EDIT: Asking
First come, first served. Paypal strongly preferred unless you're local.
I'll clean it before shipping! :)
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