Maybe one of the low dollar options is to use an aftermarket inline fuel pump, with a racing type fuel cell WITHOUT FOAM, get a fuel cell with baffles. It might take some homework to figure out the fuel level sending unit resistance to match the OEM fuel level sending unit resistance, and then figure out a return line. Maybe you need to figure out a charcoal fuel vapor canister vent line? If your just needing something ultra low dollar cheap, just go to a junk yard with a tape measure.
dave w