I have not seen the new Sunpro gauges but they look the part.
I'm not sure what plowman means about MSD systems. I have had Sun Super Tachs hooked up to MSD "tach" outputs and HEI "tach" outputs many times with no issues.
Jim, PM me with what you are looking for. I may have something up you alley. I have a "few" SST-802s and SST 802-2s laying around. A few are ones I had restored years ago because they had broken lenses. Yes, the inner bezels were pryed off. Although it sounds bad, it really does not look bad. It will never be seen when the outer bezel is on and the tach is in the cup.
It seems like there has to be a simple way to get the bezel off. Something like a can opener type device.
Jason