Adjustable Butt Plate

I looked and didn’t find anyone who has an adjustable butt plate for the Vulcan bullpup.
I am interested in one because when I shoulder the Vulcan, the butt often sits
high on my shoulder, like one would hold an AR15. It’s either that or I am lowering my
head to establish cheek weld — and that is with high scope mounts.

Also, wings or hook would also make it easier to support with the trigger hand
while cocking with the free hand.

Any solutions?