I'm going to get some of those aluminum 100K @ 50 watt 3% jobs, put three in series followed by a 75K Ohmite "Dividohm" and use the tap to calibrate the 3 KV meter for the RF. Sounds like a plan. I'll put the 2KV matching Simpson meter in the plate supply for the modulator. It's multiplier is several megs. I can use more of the 100K bugs; series/parallel for the modulator supply bleeder giving me 100K total. I just might break some rules here and build a cap input filter around a swinging choke with a 12 MFD / Choke / 4 MFD cap / 100K bleeder to the modulator. That should get me close to 1400 VDC under load to a pair of 811A's with zero bias.
All things considered I'm looking at 300-325 watts carrier with close to 300 watts audio. The UTC S-22 is good for 250 watts so it looks like I'm in the ballpark. Now I'm getting excited.