Expert Fuel Pump Opinions Needed!

Here is where we see who has been to sensitivity training and been schooled on always telling the truth, no matter how unpleasant (didn't help ... got divorced just the same). In truth, I was thumping on the black water tank, not the fuel tank. Fuel tank is mid coach. Water tank is far aft. Fuel tank is considerably smaller and thicker walled. I've got all kinds of jacks and lumber to put into play. If I can figure out how to jack up one set of rear wheels at a time and place a pair of plastic ramps under them, this fuel pump replacement business will be much easier. As it is there is very little room.