Almost any major avionics shop will fabricate a new modern flat panel
*AND* do a 337. All they need is a CNC machine and some aluminum.
Getting a silkscreener or engraver to add placards is a nice touch,
too.

Avion has had a good share of bad user experiences that I've read in
various sites. So, for the cost of the panel plus your own(or A&P's)
labor, you'd be better served to have a shop do it.