I bought a replacement Royal OEM brushroll from eBay vendor. All wood $30 delivered.
I contacted him in advance to be certain that his OEM brushroll was the right one for my 97001. He assured me it was. It is not as it hits on the inside of green light mechanism. Because it seems nearly impossible with much looking to find a new brushroll decided to modify the new one to make it work. It only required cutting off two brushes from one end so it does not hit. Very easy with coping saw and side cutters.
I still don't have functionality of the green light but can probably harvest the magnetic part off old brushroll. Has anyone done this before?? These old vacuums are so much better that the junk sold now. We also have a Meile, that works fine on bare floors and is sealed perfectly but its cheap plastic and useless on carpet...