I did this for mine
What engine was it for? All I've seen, even used ones are several hundred $$ . Mine is a Yanmar 2qm15. I was planning on using a piece of Lexan or a polycarbonate. Right now the panel is mounted flush on the cockpit seat wall. I'd like to recess it to give it a small amount of protection.
I did the same thing for my 79 H33. Used dark smoked polycarbonate, got some digital meters through JC Whitney, and installed the previously missing engine shutoff and decompression cables from Yanmar. One thing I did that many may find questionable, I did not install a buzzer. I find them very annoying, and the way I see it, if you're not keeping an eye on your gauges while motoring, you're asking for trouble anyway.
The digital gauges are great! It's nice to know the exact temperature of the water, the exact oil pressure, and precisely how much fuel you have left.
I would have included a picture, but the boat is in storage on the hard and is a distance away right now.