I run GP4000S on my Reynolds SLG 62mm wheels. 25mm...I don't recall it being that difficult to get them on/off. Maybe the first time I put a tire on if new it is a hassle, but after that, no problems. Fixed a flat one time on the side of the road, no problems using just 2 levers, really I just use 1 lever..but having 2 is nice at times.
Not sure about these new wheels AR/ARx, besides some lighter weight/different components/nipple, they appear to be the same.
For the money, Reynolds makes a good wheel IMHO...my 62mm SLGs haven't gone out of true over thousands of miles, tension still good on spokes as well. Would find some used/eBay..that is what I did...non problems....and saved $$$