Rog
I'd be interested in relieving you a couple of lengths of the Morgan compatible oval tube.
I've followed this subject with some interest, and have procured a couple of MGB headrests with a view to getting them reupholstered. However, I can confirm that they do NOT fit the Mog sockets - slightly bigger profile on the MG.
But I'd like to modify the stems so I can go ahead with the original plan.
Let me know what you'd like for them
Thanks