I have to say I felt it was abandoned too and never saw it on eBay.?
I did purchase a 3D printed cartridge enclosure (not sure it was the same seller), but would have had to cut it in half to begin to design guts for it. One would expect a cartridge enclosure to come in halves that can be fastened together somehow.
?Anyway I would still be interested in the completed thing if the price is not prohibitive.
