As soon as I can get screws for the monitor, I'll be able to make a quick video of it working. Everything else has tested fine, so it's ready to go. Just haven't had time to deal with doing anything custom. And can't find the 1/8" longer screws I need for the Xenarc.
Lots of solutions these days to drive automotive or flight gauges from the PC. Most of my gear comes from Frex:
www.frex.com/gp The SimConBase drives the SimConMeter and the Autometer tach. It can also be used to drive a motion platform, also available from Frex.