Someone still trying to make gas gauges reliable should try this:
http://www.ebay.com/itm/Fuel-level-sender-capacitive-type-no-moving-cut-to-length-4-6-7-0-5-5V-output-/251723946013?hash=item3a9bea981d:g:JP0AAOSwsS1Zi3HG
With the appropriate gauge or a signal converter available, the most
difficult part should be the mechanical adaptation.
Ken H.
http://www.ebay.com/itm/Fuel-level-sender-capacitive-type-no-moving-cut-to-length-4-6-7-0-5-5V-output-/251723946013?hash=item3a9bea981d:g:JP0AAOSwsS1Zi3HG
With the appropriate gauge or a signal converter available, the most
difficult part should be the mechanical adaptation.
Ken H.