I’ve done this, but AliExpress. The seller freaked when he found out. Did not want to sell to me. I also managed to find one seller capable of making an xM1 but they refused when I said what it was for. Don’t worry, after discussions with Amal I’ve since decided this was a poor idea. It might be cheap but it’s not worth it. (Also, only Amal has the 3mm injectors. Nobody else could provide them).