[exray]

Those sound expen$ive. What many people do is leave the existing cans in place and wire in the new caps underneath mounted on a terminal strip. The radio would work fine with 10 or 22uf @ 450v. 33 is pushing the limit for the rectifier's surge current rating. It work probably *work* but the rectifier won't be real happy about it. And yes, you could use one section of a dual electrolytic.

Note carefully how the cans are isolated from the chassis via a cardboard tube and note which one is connected with positive to chassis.