Cool vehicle. They have visually been a favorite of mine. The poor MPG has certainly put me off, not to mention I don't think it would be a reliable daily. The only thing that keeps coming to me with the fuel issue is perhaps a collapsed fuel line? It is just a guess, but maybe try shooting some compressed air through the line and see if it is fully clear of debris. I just watched another revival video recently where there was an unseen inline fuel filter causing a restriction. Once they cut it out the vehicle ran much better.
All coming in part two. Still currently trying to solve it still. Part of me is thinking that fuel pump is junk, the other part thinking it's a collapsed line, although most of it is actually hard line that runs up to the tank so