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During your rebuilds be sure to use fuel pump components, hoses and carb kits that are ethanol compatible. They have to be modern materials. Old rubber diaphrams will deteriorate quickly.
Also don't let fuel sit in your tank for too long. Todays gas seems to deteriorate in a few weeks. Think twice about "filling the tank" at the end of the season for storage because in the spring the fuel is junk.
The biggest problem on my jeeps have been sticking floats/needle valves.

The junk fuel is good motivation for you to get out and run your jeep more often.

An alternative is to fill the tank with avgas 100LL which has no ethanols or alcohol in it and stands stored for up to 4 years just fine.

Wes,
Where can a person purchase the avgas?
Thanks,
Kendall

An airport.

Most smaller General Aviation airports will have an FBO (fixed base operator) that will gladly sell avgas. About $1-1.50 more per gallon but a small price to pay for the results offered. A 5 gallon can's worth can make a huge difference when ready to run again. Most anything that sits over a "season" will do much better with avgas.
Jim

Another alternative is to replace fuel lines and carb rebuild kits with neoprene rubber which doesn't break down with ethanol additive fuels.

popular mechanics just ran an article about the troubles of ethanol in gas. Water is attracted to the ethanol and causes a separation to form in the tank. I add water neutralizer from the marine supply to all my two stroke engines and it doesn't sound like a bad idea for the jeep