Actually I replaced all of the rubber lines a few years ago when I first purchased the MH, so at least that part is finished. When I bought the MH it had a front wheel locked up. That was due to the rubber line being internally deteriorated and acting like a check valve.
I think the rotor/hub arrangement is a little different on the P30 then you described for your Dodge. Someone correct me if I'm wrong but the on the P30, with dually rear wheels, you have a hub where the rotor bolts to the back side of it using 8 rather large bolts. The wheel studs are on the front side of the hub and there are only 5 wheel studs that don't have to be removed. Something like this:
It's not a picture of mine (I wish) but seems to be representative of the way mine is from memory.
It's getting those large bolts out that concerns me. I figure I'll need to use some PB blaster before hand and maybe some heat to break them loose using an impact gun. Any suggestions or advice would be greatly appreciated.