Thought I'd toss this out to any potential UDS builders looking for a source for drums. Came across this while perusing one of the surplus sites I visit. Cheap price on a good drum, however I'm sure the shipping will make it unreasonable.
http://store.colemans.com/cart/55-ga...pty-p-159.html
http://store.colemans.com/cart/55-ga...pty-p-159.html