I was told that fuel pressure gauges fluctuate so much that they wear out the sending sensor? And what is EOT and ECT?

And can anyone tell me how hard it to hook up pyro, boost, and a scan gauge?

That's just dumb. Get a fuel pressure gauge. A gauge wont wear out the sending unit, but pressure spikes might. The sending unit is sending signals to the gauge, not the other way around. EOT is engine oil temp, ECT is engine coolant temp. Two very important gauges for a 6.0.

Pyro is pretty easy, just have to drill and tap the drivers side manifold, you can do this really easily under the truck, tons of room to do it actually, I've posted pics all over on here of where I drilled and tapped mine. Boost is stupid simple, you can either drill and tap the intake elbow, or use a "T" in the map line, which is cake. Scangauge just plugs into the OBD port, so that's the easiest of them all. If that's what you're referring to...

That clears alot up. Thanks