I have a single pillar pod and I want to get rid of it (previous owner put it in). Honestly, a street driven car shouldn't be in a continuous state of tune (unlike a track car). That being said, put the boost gauge in the glove box. I'd suggest against getting an oil pressure gauge and simply buy a new sensor for the stock one. Then if you want other gauges, get an oil temperature gauge.
"The 300ZX Turbo is a dance; it's a song; it's rolling, roaring automotive art. There is no color that doesn't suit it. There is no mood-lifting chemical substance it can't replace." - Automobile Magazine