I used boost, oil pressure and oil temp so your install may vary, but under the dash beneath the relay board are some red wires with ring terminals on posts. The one on the far left (I think) is marked 75x, that is your switched 12v source, and there is also a ground connection above the relay panel as well. I ran an inline fuse from here up to the gauge pod and then daisy-chained the 12v source to each gauge as well as the ground connection. I tapped the rheostat wire with one of the quick-splice clamps so that the gauge lighting would dim with the rheostat.
In the Engine bay, I used 42 draft-design's oil pressure relocation kit pictured here:
I also bought the sending units from them to go with the relocation kit. They also have an adapter for water temp gauge installs as well:
As for running wires in the engine bay, there is a small grommet in the firewall just above and slightly to the left of the brake booster, easy enough to pop out and poke a small hole in to run wires through.
I also used VDO Vision gauges, and used 42dd's blue L.E.D.'s, and they were a good match but dimmer than stock lighting. They were the cheapest ones on their site and two have gone out after a year, so when I replace them I might pony up for some of their more expensive LED's and see how they last and hopefully they are brighter as well.
I used the Autometer pod myself, and painted it with black plasti-dip in spray form, it matches the OEM soft-touch perfectly and so far has held up to a year in the sunlight.
Hope that helps,
Brendan