I found some really usefull gauges that are used for aircraft. There are 2 that i am really interested in since they combine so many features into one gauge. First one is one gauge that can control 4 egt probes. Goes up to 1900 degrees. The second one can show both oil pressure and temp on one gauge. The only issue i can see is that they are 14v, but if they are hooked up directly to the alternator i dont see there being a problem. What do you guys think?