Try this link:
http://www.hispecwheel.com/products/765/Series-03
Believe the Series 03 is what you are looking for--as to tires in 17.5"--if you want the 17.5" wheel/tire, I suggest you go to the 235 size and get the 6005#rated tire. Then get the 6050 wheel from Hi-Spec.
Over 10 years and 1000s of miles towing a Suites, I only had tire problems with GY and Michelin--both tread separations--also used Cooper/Sailun and only had one nail flat on those two brands. Then Continentals are good also, but pricey.
Changing a 16" Suites to 17.5" is usually a great way to have peace of mind on blowouts.