I haven't gotten around to doing the gauges yet (I'm actually sitting in the truck, just about to tear appart the dash = D). I got the neo-3 and neo-4 lights for the HVAC and switches from superbrightleds.com. I got the plcc-2 LEDs (for the gauges) from oznium.com.
Happy modding! PM me if you have any questions, even though I have a 4th Gen, I can always try to help a fellow member of the T4R community!