I'm replacing the cockpit instruments (wind dir, speed, knot etc) in
my sailboat and of course the holes are different.
The original ones were cut right thru the cockpit combing
gelcoat/glass - so have some big holes I can't use.
The solution seems to be an overlay face panel - but what material -

- not teak - too hard to keep up,
- lexan/acrylic - starts to look bad after some years,
- electropolished stainless - but what finish - don't want a mirror
- aluminium anodized - maybe - hard to find good anod in So Cal?

Any other suggestions. It needs to be about 30" x 7"