I have been spending some of my free time designing a new larger flexvat and build plates to go with the new flexvat and LittleRP compatible vat. I was surprised at the demand for the LittleRP flexvat and felt there might be an interest in a larger and more generic flexvat.
These flexvats can be adapted to printers that can accommodate their size using adapter plates or custom platforms (information for doing this can be found here). Two of the new build plates have level adjustments so they can be adapted to printers that do not have build plate leveling.
I will also be opening a web store at flexvat.com on monday 6/20/16 to sell the new vats in addition to FEP film, replacement materials and printer adapters for the vats, you will also find a lot of technical information there.