MakeLure on YouTube has videos that can take you from making your own prototype jig body to a production mold of your jig if you are inclined to try your hand at it. Might be cheaper to start that way to see if your jig performs the way that you want it to. Any tweaking or modifying could be done on the cheap before you send it to a 3D printer or aluminum mold cutter. If the molds are just for your own use you might stick with the molds you made yourself