Have you ever considered offering this in kit form? I for one would be willing to buy it to save some part sourcing time.
Yes actually. There have been two companies interested in mass producing kits, one of which fell through, and another that is still theoretically in process. I don't have an ETA for when those will be available, or at what price
I do also sell a limited number of parts kits myself, either just parts or full on "as much as possible" pre assembled units with the hardware, etc. If you would be interested, shoot me a PM and we can discuss options. A full on all the openbuilds parts included bolt on kit (you reuse your existing motor, belt, idler hardware and the mounting bolts to attach it to the X endplates, all else is included) X axis kit in black ABS would run about $243.50 + shipping for example. If you wanted a custom color, I would have to charge plastic to the whole roll, which would increase the price a bit. I also print and sell just the plastic parts if you would prefer to source your own rail and hardware directly, which would decrease the cost. If you are interested, shoot me a PM here, or send me an e-mail at piercet at Comcast.net and we can go over detailed costs and options. For shipping, it's usually actual shipping and packaging cost. I will ship internationally, but there are some areas that I will not ship to, as I have had problems getting things there in the first place (Greece for example seems to be a package eating black hole or something) .
Y kits and Z antiwobble kits are also feasible. Theoretically a Z kit would also be available but no one has ever ordered them. I've also sold my extruder body modifications, E3DV6 setups and 1.75mm extruder setups occasionally.