Here's a picture of my original resto. I think you could go a lot of different ways. Of course there is money involved. J Carter's sounds like a fair deal. Dolphin makes a nice unit in an antique white that looks "old". I think you could separate the bezel and retro fit probably any type gauge you desire. Try making a cardboard cutout with a few designs matching the gauges you want. If you make something you like transfer to a piece of aluminium. You could polish or paint. Good luck and have fun
Dan