FWIW, in case anyone ever reads this and is looking for a solution: for my own Pathfinder, I was ultimately able to repair a wheel via drilling out the existing axle and replacing with a 70mmx24mm wheel and axle from Amazon. Was not easy nor perfect-- the Amazon replacement broke several times until I purchased enough washers to stabilize the axle, and both axle and wheel are clearly inferior to the original-- some sources suggested inline skate wheels as high quality, also FWIW.