This is a Canadian '04, so IMO almost every type of ugly problem is likely to be in play with this vehicle.
That is one point that I didn't take into account. I live in the South, and rust is pretty foreign to us. I stand corrected. I'll give some actual advice now. Thank you for your wise insight.
As far as a sticking rotor goes, kick the living shit out of it donkey style, it'll come off, even if rusty.
As far as the bleeder valve goes, just don't mess with it. Take the cap off of the master cylinder and use a c-clamp to push the piston back in.
Including the lug nuts, you only have 9 bolts per side to undo with a MZ3 brake job. 5 on the wheel, 2 slider pins, 2 caliper bracket bolts. That's literally all there is to take apart. If you have rust, spray the hell out of the bracket bolts with a 50/50 mix of acetone and ATF. You may want to use a wire brush on the end of a drill to remove any loose rust.
Really, that's it.
Again, I apologize for not thinking about any rust that may be there. m3iguy was correct in his assessment.