You better outsource digitizing to someone who knows how to do it.
Digitizer needs to know how to cap the ends, what the density settings need to be, and so on.
If you have in-house digitizer, let him/her watch the machine sewing the design and that he can get the idea of what he needs to do.
Also, you will need some 3D foam from Madeira or whoever you use. It comes in 2mm and 3mm thicknesses.