Yes, i have tried all of them and actually much more. But i can`t say its all relevant for all those bikes manufacturers ,as it also goes with shock setup, settings and etc.
I have been also impressed a lot by this machine, Limited Edition :
Yes, they have confirmed about that that there would be spare parts available and also, they keep up the production with new models. Well for the fork you should be very happy with, but i don`t have any information and details about the moto shock- durability, performance, etc. If you own a reliable shock atm, i wouldn`t risk getting the moto.
These are what I run, except the longer 46mm ones. Probably as light as the carbon ones, but I haven't verified. Cheaper too I'm sure. I've never had an issue with them either.