Update:
Eric Sargeant's Facility and Crew is top notch. John Millis went the distance to try and make the best of my situation, nothing but professionalism, the Master Tech who performed the work was Top Level as well.
A 13 hour drive and a boatload of money spent, sadly it was a VERY expensive failure. A GX 550 fuel tank will not fit into the space available in the LC. The rear of the LC tank has a space in the rear of the tank to allow the suspension links to clear and I don't think the GX has the same type rear suspension.......... so it came up about 2" too long. All the fittings were correct and the LC plastic vent clamp had to be removed (the GX tank has it molded in). Unfortunately the old fuel pump sending unit was installed in the new tank before the tank was test fitted, allowing a small amount of fuel inside the new tank. The parts department would not accept it back due to the fuel.......... so I am the proud owner of a brand new never used GX550 fuel tank...........
View attachment 25030
All may not be lost as I am going to attempt to mold a pocket (R/H pic) into the tank otherwise, it's kind of useless.