The aluminum rims on my 2011 Venture trailer are showing their age. One tire constantly slowly leaks and all tires are several years old. New galvanized rims and tire package are +/- $250 at a princes auto. Should I polish the rims and put on new quality tires or replace all tires and rims with the Princess auto tire/rim package? I imagine the tire/rim packages are cheep tires and rims but polishing the existing aluminum rims would be a butt load of work.. suggestions?