I already have the egt and boost gauges. I love the look of gauges and have one spot on the pillar and will be getting the overhead pod next week.

So I have 3 spaces available for gauges. What are others using?

I'm with you, I like those gauges. I just installed an ATS transmission pan, and a Mag-Hytec differential cover, so I also added a temperature probes to each. Fuel pressure might be another to consider. I'm putting on air bags for the rear with an on board compressor. Kit comes with combination pressure gauge allowing you to read the pressure in the left and right sides.