Jay,
There is a simpler solution. My Husky has a panel that screws into
the panel. Loosen the screws and pull out the 4 insturments attached.
You now have a big hole that alllows pretty good access to everything.
Still, its not always easy. But every round instrument comes out
without too much trouble. Doubt if there is any retrofit of such a
panel on your Cherokee though. BTW a new panel is MAJOR bucks, so any
retrofitting wouldn't be cost effective anyway.

Whatever you do make CERTAIN the none of the wires are getting tangled
with you yoke arm etc. I've seen where travel got restricted on the
yoke due to adding some wiring and the tech not taking that into
account.