When I need epoxy for my boats, I normally go to a Rockler store in north Seattle. It's 32miles and 42 minutes each way but I never have to worry about it being a wasted trip. I know from personal experience that I can get most woodworking glues, West Systems and System Three epoxy products off the shelf. I've never seen the paint type products but I'd be surprised if they couldn't order it in for you. Give them a call and see what they say since it can't hurt and you may even find tools that could come in handy as well