2001 Dodge Ram Front Brake repair and cost

Brakes problem
2001 Dodge Ram V8 Four Wheel Drive Automatic

My local dealer quoted me $1200 to replace the front rotors, calipers and brake lines. He says I have a lot of rust on the braking system & calls my truck a 'Yankee' truck since I recently relocated from NJ to Florida. He says he see's this kind of rust from the Northern states. My local brake repair shop wants $500-600 to do the job, but asked whether the rotors are pressed on or slide on. I don't know, can you tell me? Can you tell me what a reasonable repair cost is for this job? I'm very handy on motorcycles & have rebuilt many calipers & replaced rotors, pads. $1200 seems excessive after checking online prices of the parts. Seems the calipers are throw away items theses days. Thanks, Rich