If you don't mind a little diesel on your hands, and few hours of work, this is a fairly easy work. I used for mine the Kennedy lift pump and this:
viewtopic.php?f=98&t=39362I only mounted the pump on the fuel line close to transfer case, under the transfer case shield. I also hooked it up on a button with permanent plus, so I start it manually. You can get the 3/8 marine hose from napa.

Not the best pic but that's all I can do for now (I'm at work and can't get under the car).
In regards to fumoto valve, you could use some Teflon plumbing tape on the threads, it should work and also you can avoid the need of over tighting it.