[OMC-Boats] Replacement Instrumentation

Hello,
 
I'm restoring a '70 Envinrude 16' Explorer 150 and need to replace all three of the instrumentation pods; speedometer, tach, combined fuel/volt meter.  The openings in the aluminum faceplate that holds each instrument is 3.25".  It seems all current market items require 4" holes.
 
Questions:
1) Is there a source for 3.25" like gauges?
2) Has someone successfully widened the holes to 4" to accommodate current gauges that are out there on the market (Teleflex, Faria, etc)?  (successfully as in still able to gett he instrument into the hole inspite of the overhang lip).
3) Any other suggestions?
 
I thought about dispensing partially or entirely the aluminum faceplace and replace it with wood like teak or the like.  Anyone done that?
 
Thanks.
 
-Bill
Dallas, TX.
Received on Saturday, 7 February 2009