I'm not sure what to price my rims and tires at and I need some advice. Ive got 20' MSR Machined Silver Rims with Hankook 275/30ZR20's on the back and 255/30ZR20's on the front. back tires are worn a bit, front tires are like new, they have the air pressure sensors installed. Just need balanced and a small nail removed from one of the rear tires... any adivce??