There is no real excuse! Morgan should know the vin of the very last car manufactured without the bevel box ISO kit. Any car requiring a frame replacement prior to that vin number would automatically "need" the parts to remount the bevel box in the new frame. This happened to me 2 years ago and seems to still be the norm.
A car can be hand built but there should be endless data feedback available to everyone in the factory enabling them to continually improve their job😡