Up for sale here is this used vintage GE oil bathtub capacitor.  It is marked as having one section of 1.75 uf 850v, and I think it's 850vAC, since it says "60 cy" right after 850v.  It , so it should be good for at least 1200-1500vDC.  It tests almost dead-on, at 1.744 uf, with minimal leakage/ESR, and will work great at full voltage.  Please see my pictures for details, measurements, and test results.

US shipping and handling is $10, and international is $28.  If you have any questions, please ask.

I have more capacitors and other vintage electronics listed--feel free to take a look!