[Arran]

I was thinking of just taking and isolating the end that connects to ground with a nylon washer and nylon screw so there's no longer a connection on that end, and then soldering the new capacitor to the terminal that connects to the coil end and the other end to a nearby ground. I'm not concerned with restoring the underside which is closed in and you can't see it anyways. I probably won't re stuff the cap box either, the new capacitors are much smaller and they'll all fit under the chassis as well. This chassis still has the cover as well.

 Most will restuff the condenser box because it's not really that hard to do and results in a clean looking restoration job. I believe that the cans are lined with fish paper so a small amount of heat will cause the block to slip out of the can after which the wires can be clipped off at the base. These sets did not originally use electrolytic capacitors for filter caps so they used large value paper caps of about 1 and 2 uf and housed them inside that can along with several bypass capacitors, whilst they may have modern electrolytics of the same electrical size that are much smaller they don't hold up well in that application, so modern plastic film caps are recommended.
Regards
Arran