Dude your the man!!!!!! I still want to buy some to mod them with a spigot, but would love to test my set up on my new to me trailer. When are you going to be home.
The sceptre marine use (blue) cans are available at Pep Boys, Bass Pro Shops, and West Marine. They are not as heavy duty as the military grade ones, but you can buy 3 cheap ones for the price of the military ones.