It was my understanding the mats were primarily soulbound.
This is true, and I wasn't thinking clearly about that.
I however do have three 600 skill Engineers and will likely get all 3 working one each since each will take many days to accumulate the mats on each. This was in line with what I was thinking, but clearly over all not being able to trade the main item is going to slow the plan done some.
For tailoring you can get the Fur from barns and that would be traded, but not really necessary I suppose since the Fur is easy to get.
thanks for the info otherwise, it is good to know you are not stuck with your building choices forever.