I viewed 17"-18" as a good compromise between lots of sidewall and the rubber band look of 20"-22" wheels. I have seen examples of each on 60-66 trucks and think the 17"-18" size offers enough sidwall for a decent ride. Wheel venders tell me that they have plenty of choices, old school and modern, for a 5 by 5 wheel, with correct offset. I tend to believe them since I've seen plenty of examples of great looking rim/tire combinations in photos that I've found and trucks that I've seen at different shows, all 5 lug. Also, regarding AR, they will only let an average Joe contact them through a dealer as stated on their website. When I've tried to work around this with AR and other manufactures it's the same deal, "contact a dealer".