I couldn't find a really good stock to use with the excellent mounting point created by @LikeThePlatypus, eventually I stumbled on ReptilianSnail's stock for the parallax, which had the exact style I was looking for, but needed a bit of adjustment to work properly with the fury x.
Really happy with the way the final result came out, particularly with how stable it manages to be under high spring loads and with how natural it is to sight behind.
any feedback greatly appreciated!
The author remixed this model.
used the general shape from the parallax as a starting point since I really liked the design, used the development kit to provide the actual mounting point to the blaster.