[Arran]

You are lucky Ed, on the A-30 I'm working on the can was a four section unit, 10 uf, 10 uf, 10 uf at 450 vdc, and a 20 uf at 25 vdc. I'm not sure whether I would have been able to restuff the thing even if I wanted to, it's only about 2'' high, and 1-1/4 in diameter at most, so I  installed a terminal strip to make replacement by a future owner easier. The RCA A-20, A-22, and A-23s are even worse, they are a three section can, 10 uf, 10 uf at 450 vdc, and a 20 uf at 25 vdc, and the can is 2'' tall and maybe 3/4'' across, I don't think I could restuff one of those, but maybe. You can see after taking your can apart that the innards are made like a jelly roll, the negative foil runs all the way through and is used for all of the sections, so they can make it more compact then using even the skinniest radial lead caps, like the pencil style Nichicons.
  Anyhow I stopped working on the A-30 for the time being, I have more resistors to hunt down, as well as a replacement cathode cap, but I haven't had the time. Just after you finished working under your car, I started crawling around under a mobile home with a jack and stacks of wood cribbing, the floor was so unlevel it was getting scary.
Regards
Arran