class A brake job

If you think the rotors need turning many garages probably will insist on replacing them. This place has a great reputation:
Josam Truck Frame & Alignment
8849 Exchange Dr,
Orlando, FL 32809
(407) 438-8944

It really depends on what brakes were used. If it's one of the standard setups used on so many OTR trucks then those big pads a surprisingly cheap. If they're some Ford specific parts then the cost will be many times more.

Quick research shows new rotors at around 175-200 each.
Brake pads about 70 for a set.

Not sure how they are coming up with the price you are being quoted.
Keep shopping

Tampa Spring Company in Tampa or Ocala does all our chassis and alignment work.
http://www.tampaspringco.com/

Brakes can and will be expensive on the F53 chassis. I've got a 2000 F53 and had the brakes done 2yrs ago. Front pads replaced (no turning of rotors) and had everything replaced in the rear - rotors and pads. Total cost was around $1400.....

-paul

just help a friend and he had around $600 in high end parts. He replace the rotors instead of turning. Took most of the day. They also were bleed.

Seems high... Fort Pierce close enough?
I can recommend an excellent RV/truck repair shop right near I-95... Small shop, owner is one of the mechanics. He has done a lot of work for me over the years
St. Lucie Automotive
5310 Orange Ave, Fort Pierce, FL 34947
(772) 466-0247
No affiliation except happy customer