Hi im new to this forum, I have been hunting all my life and since I started hunting with a bow, the idea of using a saddle has appealed to me, unfortunately we only have climbing harnesses and arborist saddles here in Denmark/Europe.
Welcome to the site! There are some custom saddles on here that you could probably try to replicate which would probably work better than an arborist saddle. You also may be able to reach out to the saddle manufacturers here in the US and get them to ship one to you.