Do you know anyone with a knitting machine?

As long as they can find the right yarn you can make just about anything. A pattern for the fabric patches can be taken off the one you have, as well as a rough guide for sizing and shaping.

Though I don't think that the original military design comes in a vee neck version, I have only seen civillian ones.

I have one I bought that the moths have made merry with, so I must salvage the patches from it and knit new bits for them. In something mothproofed.