That does not provide the 200V across the tube ends, also the cap there is shorting the centre input signals at audio.
It also relies on independent, totally floating DC power sources. If you are using those, then this is nearer the target:
My original basis was having all supplies referenced to a common 0V, so 80V, 120V & 200V DC, so no floating supplies needed.
Each would have its own smoothing, with series resistors to the tube ends from the 0V and 200V point.
The version I first described was to have the 80V and 120V points connected to the tube as well, then using capacitive coupling with each transformer secondary having a series DC isolating capacitor and connected to the tube terminals (after the limiting resistors), across the points in your original diagrams.
A simpler method would be to put the 100V line transformer secondaries in series with the 80V and 120V feeds to the tube, to apply the modulation superimposed directly on those voltages.