So , I did swap the panels. Cleaned up the second panel, laid down some black vinyl as an overlay, installed my happy leaf buttons and tweaked 4-way Wico.
Went to install on the cabinet and found that the panels are different freaking sizes, by 1/2" ... of all the stoopid mistakes to make ... ah well, swapping panels was the right thing to do, so maybe swapping cabinets is also the right thing to do.
So, I stripped the "other" cabinet (a tough proposition since the idiot op had mounted the monitor so that you HAD to either pull the tube and chassis seperately from the frame OR yank the nailed-in supports) and transplanted everything.
At this point, I needed a wired CP and amplifed sound, so I dug up a handy-dandy 1W amplifier kit I bought on my last trip to the electronics surplus store. I forgot how bad I am at "little" soldering (e.g. sockets). Ah well, everything ended up working fine, so next step (dare I say today?) is to mount the amp board and connect it to the Speaker inputs on the JPac (and so to the cabinet speaker via he JAMMA harness) and finally wire the CP (now that it fits the cab).
I may have a real deadline on this now as my wife has now noticed that this cab plays LockNChase ...
Cheers