Thanks, I've used liquid nails to re-attach the rubber top or bottom to a keg, it works well. I'm just trying to figure out how to remove the bottom from one keg so I can move it to another one.
The kegs were reasonable, I expect to get some duds in the batch and the guy gave me a bag full of spare parts and a couple of scrap kegs to scavenge from. The worst ones have a tear in the lid opening, there's not much I can do to fix that.