Well I mean there is this for cheap that just adds dual drive to the direct drive mk8 setup you already have. The price is right on it for sure: https://www.biqu.equipment/collectio...r-3pro-ender-5 . But the problem with it and I think what you have also is the fittings with the tiny threaded part that only allows the filament to pass through it. These create places for filament to jam or get stuck. It is usually nice to see the fittings that let the ptfe tube pass right through them because you can run that one tube all the way up to the extruder gear and not have multiple breaks in the tube.