Finally dropped the gas tank (that was real pain too, had to hand hack saw the straps off) on the 87 White 4x4.
Found used, good straps and bolts, anti-rollover-vent valves, and a good working Renix fuel level sensor-steel tube-flange-wire assy (No pump) and ordered a new tank from Spectrum on Amazon delivered for about $75 (Tin/lead coated outside), and ordered the 2 fill hoses, ordering the inline fuel filter today. I already have 3 brand new Bosch Renix fuel pumps I got on a close out sale a while back from rock auto
The remains in this tank is all black and gooey inside, what ever it is in that tank it dissolves/melts rubber (the gas/fuel hoses did not dissolve as far as I can tell). The inside rubber parts on the rubber vent grommets and the fuel pump rubber parts looked like melted asphalt, or liquid electrical tape in a bottle.
Either the PO got some really bad gas, or added way too much acetone (used in fingernail polish remover to dissolve paint), or some POS person dumped something in the tank fill line when it was parked at my shop outdoors, something like brake fluid, or paint stripper...:shiver:
I will now need to watch the injectors closely and the fuel lines and QC seals in the early days of running it again.