[Boatanchors] WTB HV Rectifier Filament Trans

[Dave Aabye]

I need to replace the filament transformer in an existing 2000V power supply.
 
I'm using 3B28s, so the required voltage/current is 2.5 VCT @ 10 amps or 5 VCT @ 5 amps.  I'm looking for 5000 V insulation or better.
 
If you have something, please tell me the dimensions and style (method of mounting).  I've got to make it fit!   The existing transformer has a "U Frame" mounting and is located under a 4-inch chassis.   
 
Dave, W4QCU
Oak Ridge, TN