Ralph,
I recommend you don't look at the gauge install as "all one job". Instead, you're doing 3 separate installations (fuel pressure, EGT, boost), each with it's own way of doing things. I believe the reason you're not finding what you're looking for is it doesn't really exist. Every gauge install is unique (although they certainly have commonalities), and everyone chooses different wires to tap for power and where to tap for boost and how to install the thermocouple, etc. That's why I say the best way to tackle this job, especially for someone new at the game, is to pick one gauge you want to install and research it until you develop your own plan on how to go forward. That's exactly how I've done every gauge I've installed on my truck (4 so far)... meditate on it, think the entire install through, plan, read the TDR, seek advice, install. To get you started, here are some questions you should be asking yourself (I assume you have already selected the gauges you want to use):
1. Where will you install the EGT thermocouple? This means not only pre or post turbo, but where, exactly.
2. Will you tap your intake horn, or use something like Piers' boost bolt for your boost gauge?
3. Will you use a tapped banjo fitting for the fuel filter gauge, or a replacement lid with a port on it?
4. How will you get your wiring through the firewall? Drill a hole, or use an unused rubber grommet?
5. Where in the cab do you want to mount the gauges?
6. How will you power the gauges? Do you want to tap the vehicle electrical system, or install your own auxillary electrical panel?
Some of these I'm sure you already know the answers to. It's a lot to address, and that's why I recommend picking one gauge and seeing that install through to the end. And plan on taking some serious time with it! Some of my gauges I installed in "phases", all of which occurred over a period of over a week. One evening I would wire in the sending unit, another day I'd install the gauge itself, another day for wiring, another day for plumbing. Just taking my time, working for an hour or so each "session". But, all my wiring is well documented, well-routed, and everything is neat and clean. Most importantly, everything works with minimum frustration.
That's my opinion. Take it or leave it.
To get you started with the boost gauge, I recommend
this thread. 
Attention: TDR Forum Junkies 
