15x7 slots

I just picked up this amazing set of slots. Kind of bought on a whim so not even sure if theyll work. They are 6x5.5 so the lug pattern is correct. the centers will need bored out slightly which is ok. I am more worried about rubbing and clearances. These have a 4" backspacing. Anyone running similar wheels, or can recommend a tire size? The truck is stock height and will be staying that way for a while. TIA

Should fit just fine
I have 215/80/15's on my first gen, 2nd gen have a bit more clearance. have to adjust the steering stops a bit, sometimes on a sharp driveway my tyres rub the mudflaps up front

info here on page 2
https://imgur.com/a/SqoYJ#0