110rd50

I just bought a 110rd50 and love the powertube overdrive on the clean side. Has anyone converted one of these to EL34's if so was it like converting a Fender?
Also I would like to modify the tone stack on the dist. channel to give it a brighter character. I notice it is based on RCA/WE however the values on the caps, resistors, and pots are not the same. Has anyone revoiced this to be like a AB763 Fender?
These things aside I love the amp.