Orion HCCA 2100 rail capacitor availability

I'm rebuilding an HCCA2100 and everything is going well; just having trouble locating Axial 4700u63v rail caps (4) sized 1" diameter x 2" length. Seems the rail voltage is +-36vDC.

Am I alright with either:

Lowering capacitance to 3300uf63v
Lowering capacitor voltage to 50v using 4700uf50v caps?

Parts are scarce and axial caps are much harder to find. Another option would be to wire-in radial caps I guess.

Thoughts?
 
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