I installed the dubro 14oz tank. It does fit but you will have to move the support pice back a little and glue it in place. The head of the dubro tank does not come through the firewall and you will have to use long pieces of tubeing to get the fuel line through the fire wall. That being said it is a good fit and the top hatch even still fits without any modifacation.
Here are a few pics I took of my progress so far.