This is the best option for the Filametrix. The bambulabs Hotend is high-flow, cheap, with lots of aftermarket nozzles. The wiring routing is clever, but a pain to route if you put the plastic connector housings on before assembly. It's a pain to crimp after after assembly, so I recommend crimping them first, but waiting to put the plastic housings on until both halves of the printhead are assembled.
