Hi Kevin
I hope someone here can give you advice how to do this at home with some simple set-up. I don't think you want to ship the tubes from your QTH and hope they are not damaged just for a test.
I read that you at least have a socket and air. That's a beginning...
That is a helluva tube.........I had a plate modulated TX, not built by me, that screamed in Class C 2500W out at 3500VDC at 5 amps...The power supply was common to the modulator deck, which was a pair of 4CX1200A's.......I'm guessing you are going to make a leanyear?
I will look around the shack...I might have the original schematic for the class C design...I could scan and post here as a PDF
Fred