Purchased from Red9Deisgn in UK for my 1972 Bay Window, but have decided to go a different route - never fitted.
Here is what they have to say about it:

"We made this to accompany our Subaru install, but there is no reason why it can not be used as a replacement for the stock tank. It has the stock Bay Window fuel sender mount and Pickup pipe in the bottom face. The filler and breather pipes attach to the standard tubes on the left hand side and internal baffles. Its the largest thing we could squeeze through the stock hole in the bulkhead an will fit behind the cover plate in the Bay Window engine bay. It also, comes with an external strainer.
Capacity is approx. 65ltrs
Can be fitted to Split Screen Bus too, but will require modifications to your Bus. "


Location: Altona 3018
Happy to Ship at buyers expense and arrangement
New its $850+shipping.
Happy to start at offers around $650