So my parts came today and I changed out all the electrolytics in the power supply along with C333 / 334, the rectifier diodes for the 24v supply, and also Q311, Q310, and Q309. After doing this, I checked for noise on my scope (with the gate off) and it was approx 5v of noise on pin 1 of tube 2. Much better than the 15v I was getting before! In playing, there is definitely some noise, but its about what it was like before. I anticipate some noise out of a high gain unit like this, and its comparable to my Rocktron Chameleon black face unit with the gate off. I also think that I've picked up some gain from all of this as it sounds crunchier than it has in quite a while. Needless to say, I'm quite happy. Thanks for your help, yet again, MarshallJMP.
On a side note, does anyone know where I can get cover screws for an MP1 / MP2? I have 1 MP1 and 1 MP2 ripped apart right now and only enough screws to do 1 cover on any of 'em. The rest kind of disappeared by the screw troll.