To deal with the fuel range issue I am making two additional tanks that will fit inside each rear quarter, each will then feed into the main tank (which the pictures are of so far).

The std '68 filler cap will, inside the quarter be matched to the aluminium tank and replicated on the RH side (yes 2 x tanks). This should provide a half-decent range for the car. the distances are large here in Australia total system capacity will be about 50+ US gal.

Inside each aluminium tank housing will be a bladder (made by ATR in NJ), to cover safety issues & ensure the tanks aren't ruptured on side impact. Tank housing will run close to inside quarters approx 1" matching inside quarter contours. hopefully cutting templates this week will post pics. System will also detect sudden pressure loss, as in ruptured line(s), as a system kill condition/switch of controllers.

another of in tank setup 2:

6682727-4-Assembled-5.jpg (312 downloads)