Yup, that thing is a wall ornament now.
Check with Van's on Monday. They may have a spare QB tank around that they may be able to part with. The other route would be to get a standard build replacement tank kit, and/or have Evan Johnson build you one.
http://www.evansaviationproducts.com/
They built my fuel tanks after my first botched attempt.
He really has the system down. Nice clean application of proseal and no leaks.
..... I'm close to the cafe.