Thanks to everyone's help, I have completed the fix. Here are a few things may help others new to this problem.

I didn't removed the center safety belt anchor bolt, but was able to put the seat cushion on top of the seat back over the cargo area to fully open up the space to work on the problem.

I installed the o-ring, but didn't do the zip tie fix. This was because in my case, there was no misalignment and I couldn't find a zip tie rated for submerging in gasoline. Also, I noticed that the system is designed to have its plastic rod end pushing on the bottom of the tank and through the spring to apply a continuous pressure to keep the lower portion of the assembly against the top portion. I wonder some of the failures where the o-ring gotten blown out were because the rod end slipped in the tank and started to push side ways causing misalignment between the two parts making possible for the o-ring to be blown out.

For the "taflon tap fix", I did it differently because I don't think I could properly wrap the tap securely to guaranty it does not work loose some how and end up flowing in the gas, eventually clog up something. I used a stainless steel safety wire to tighten the parts together by applying just enough pressure to close the gap while be careful to not crush anything.




Finally, I couldn't do the test to actually see if any fuel comes out from those repaired areas. I just couldn't keep the assembly internal to the tank sufficiently visible while still have the external pipe attached :-(

I will just have to drive the gas level down to make sure all is good.

Thanks for all the help again!