@ Iuvenis_Scriptor,

There is a lot of information in your post (which is good), but I'm finding it hard to work out what question you are asking. Also, whilst you don't say it specifically, I get the impression that you are distributing a cr2. I wonder if this is wise, and why it can't be distributed as a pose file.

I think you need to break the problem down into individual parts/questions, and tackle one part at a time.