I have found 2 sets of pads per rotor to be a pretty consistent rule of thumb as long as you do not turn them.

Off the top of my head, I think the rotors are 28mm new and somewhere around 25mm minimum thickness.

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Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record