Thanks, I saw that one and it may be my best option.

Here's the problem:

Picture of existing switch: http://home.maine.rr.com/rlma/Bswitch.jpg

After I make the cut out for the knob, I'll have half the lettering still
visible on the panel. I can fill it with black filler but it will never be
a good match. I'm also pretty reluctant to take a hole saw to the formica
panel in place which would mean disconnecting all wth wiring and taking the
whole panel apart.to get it on a bench where I can set it up properly to be
sure I don't chip or crack it beyond repair.

Due to the spray shield, I don't have enough clearance to go with the
intermediate mounting option.

--
Roger Long