Not necessarily the right ones Corky.
X19 items have not been right for a Corse for many years and I don't think Craig would specify them for the LB setup either

I don't actually recall what your setup is.
Corse mechanism or LB? I know you have LB fibreglass housings there.
I would try a plastic bowl like a Mini fitting, even if you have to cut the back off the bowl.
You can use expanding foam around the bowl or rim to get a decent vibration free mount for the bowl inside the fibreglass housing.
You can always sell the X19 items to someone building a Hawk!