The MMU2 S kit I ordered directly from Prusa research. There are knockoffs that can be had for cheaper and if you print your own real cheap. I want this to work the first time out so I ordered the black mmu2s kit from here: https://www.prusa3d.com/original-pru...-material-2-0/ The new control board I got from here: https://www.ebay.com/itm/SKR-V1-3-3D...OSwnYdc8brgAnd I got the new 3.5" touchscreen right here: https://www.amazon.com/BIGTREETECH-D.../dp/B07W1PB11F The parts can not get here soon enough. And I have a bunch of these linear rods coming: https://www.ebay.com/itm/MGN12H-Line...JpFCs_vpdMhKWQ