The price seems pretty good for all 4 rotors and pads and labor.
If you were to do the job yourself, it could be done for around $220-$230 or so with OEM parts through fastlane.
There is a minimum thickness to rotors, if it wears to thin, then it needs to be replaced. If there was a big ridge, this is an indication of this.
Brake fluid is extremely corrosive to paint. Do not get it one painted surfaces.
I don't think the brake fluid a little over the max mark should be anything to be concerned about.
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record