Bought Mintex brakes but may not put them please help.....

It's always recommended to either a) resurface your existing rotors, if there is enough material, or b) purchase new rotors, whenever you change your brake pads.
Having said that, it IS possible to simply slap on new pads without performing a or b. However, this can result in less than ideal braking, you might experience some noise, or shudder, since the rotors won't have a perfectly smooth surface, and the new pads would take some time to bed into the grooves on the existing rotors.
Replacement plain face rotors are relatively cheap these days, so we're not talking hundreds of dollars. Check some websites for OEM brake rotors. Look for quality parts from Brembo, Zimmermann or ATE.

Re: Bought Mintex brakes but may not put them please help..... (BoraBarn4)

If the rotors are worn or damaged they should be replaced, if not then there is no reason at all why they can't be used with new pads. All pads take time to bed-in and using a serviceable rotor wont make any difference to that.
If you doubt the advice given by your mechanic ask another one, a qualified mechanic should have been trained in the difference between a serviceable rotor and one that isn't.
You could even check out some rotor makers websites, some are bound to show pics of what is acceptable and what isn't.
What exactly did he mean by recalibrate everything and what was he thinking of lubing on your existing brakes? Sure sounds like sales crap to me. That's my opinion based on being a mechanic for 24+ years and my own shop for the last 16 years.

Re: Bought Mintex brakes but may not put them please help..... (BoraBarn4)

Some good advice so far.
I'm saddened by the idea of grinding away new Mintex pads by roughening a used rotor. Sure, have the rotor turned true-flat, okay, but a "quick hand-job" is sloppy.