Actually, I just crunched the numbers and it would actually run less to get these from Kinetics, minus the shipping.
I'm sill wondering how the R&M setup works in regards to pulling it and whether it is self supporting at rest.
The Japanese version works with the rear not folded and the R&M seems to work folded, which means that for turnstiles you would just have to pick it up and over to go through. With the Japanese version you could just pull it through, but then you would have to fold the rear to get on the train as there's usually little room for folding once boarded.
That seems to be a photo of your setup. Have you had much experience using the wheels? Any chance of a photo of it folded? And lastly, what's your impression of the wheels in regards to sturdiness? Bumping up and down steps at the stations can beat the heck out of anything.
Sorry to be such a pest, but there's just no detailed information out there let alone pictures. And no one has these accessories in the US.
Thanks in advance.