Just purchased new front end suspension kit

I just ordered the super kit from Mustangs unlimited which replaces upper/lower control arms, inner tie rods, outer tie rods, adjusting sleeves, end links strut rod bushings, coil spring seats and spring insulators. I also ordered front and rear kyb gas shocks, factory replacement front coil springs and 4 leaf standard leafsprings with a shackle kit. The car already has an o'sized sway bar, I just ordered bushing replacements for it. With this set-up it will restore the factory ride height. I plan to put 17x8 AR Torq thrust II's up front and 17x9.5 in the rear. Do you think I should have went with a more aggressive spring that lowers the car an 1"? or will it rub with those size wheels if I used 245/45/17 (f) and 275/45/17 (r) tires. Also do you think I should have went with a 5 leaf mid-eye spring which lowers it an 1" in the rear as well, or stick with 4 leaf and use lowering blocks. I don't want the car to sit too high with those bigger wheels, I also don't want it to rub. Do you have any suggestions? Thanks

thanks for the advice i called them and they said its no problem to send the front springs back and they'll send me the 620's. do i need any special kit to do the shelby drop or can i use the new upper's that came with the kit i bought? if i drop the front 1-1.5" do i need to bring the rear down as well?