[Arran]

Bob Andersen has worked on some of these steel cabinet TVs, I'm not sure about whether he has done a an RCA but I seem to remember a G.E, some Admirals, and at least one Philco. One big issue with P.C board construction and tubes is you will need to resolder all of the joints around the tube sockets, I'm not sure whether this set did so but many of these used to mount the power tubes like the horizontal output, vertical output, and damper tubes on steel chassis mounted sockets. If you are luck you will be able to unbolt things enough to swing the P.C board out enough to work on the foil side. One thing I noticed straight away is that the board has a lot of disk caps, and what looks like brown drops, so you may not have to recap it all, the Bumble Bee will have to go of course, unless it is paper-mylar, some of the later ones were.
Regards
Arran