If your looking to keep it somewhat factory, check out my build, http://www.forabodiesonly.com/mopar/showthread.php?t=244121
page 2, I did a cluster and added an oil pressure gauge. Drop me a pm and I'll give you all the particulars.
Martin
That's exactly what I was planning! Did you start with a temp gauge as well for the base? Looks more like a fuel gauge from the screen printing, but I'm thinking you could have repainted it or used temp gauge guts behind a fuel gauge face. Any tips for sensor selection and calibration or did A1 do most of that for you? Nice to see this looks pretty doable.