Wow! Thanks for that info Logan...
Yes, it seems there are too many variables to make these in production.
I have a tube I will try from the supplier of this case, but I'm not sure if it will be the right measurements.
I'm also worried about the case tube hole in the case.
When I got the case, the tube was all marred and crappy at the crown face... now after taking the tube out... the bore is also quite marred and crappy
On top of that, the face
So... in the end, I don't know if I'm going to need a whole new case and crown for this to work