starman wrote:

As you may know, there's an SX-88 on Ebay....
Would it lessen the value if it was recapped?..

Yes, it will.

You might want to consider something I've written about before-
lowered B+, which may allow you to use the radio safely with leaky caps.
I've successfully run collectable radios with 24 volts on the plates
and an external, amplified speaker. They work fine with no componant
damage and have done so for years.
Pull out the rectifier and apply 20-50 volts to the B+ buss
to see "how low you can go." You can use series caps in the
HV transformer leads to drop the voltage, which is better than
trying to use a dropping resistor.
Unless you have a cap that is a dead short, I'd bet the radio
will play for you. Before anyone writes back about "cathode poisoning,"
that debate went on a couple of years ago and the outcome was that
it was pretty much a mythical problem.

If you don't want to run low B+, you can do another trick-
unsolder one lead from the old component, tuck it out of the
way and "tack" solder in a modern replacement. The radio can
be put back to 100% original if a collector cares to do so.
I've recapped and re-resistored some WWII radios this way.

GL OM ES 73 DE Dave AB5S