Honing is for the wheel cylinders of drum brakes and master cylinders. Just clean out the cavity of the calipers. The pistons should be pit free, visually. Put the seal in and lubricate it and the walls of the piston with brake fluid, not grease.
The tricky part is the dust seal. Put it in the top groove of the cavity, then stretch it over the bottom of the piston without it popping out of the groove. Once you accomplish that, start inserting the piston into the cavity slowly. As the piston goes in, slide the top part of the dust seal up the sides of the piston.
When the piston is in about half way or so, you can slide the dust boot up the side of the piston the the groove at the top. Don’t stretch it or it might pop out of the groove in the cavity and then you have to start over.
Don’t forget to clean and lubricate the caliper pins (bushings). If the pins (bushings) don’t slide freely, the calipers won’t float. The pins (bushings) need new dust seals as well.