I do have an original overhauled RB106 which is in an air proof bag. It is made from proper copper, not recycled co. as in some foreign makes, and is a proper dated unit in first class order. I woyuld be pleased to sell it to you. It will need minor adjustment every 18 months but it will work properly. Cox Automotive carried out the overhaul and it is like new.
Send me a personal message if you need it.
Any chance you could please post your picture of the metal you removed on your Steering column UJ, as I have problem of UJ not clamping spline on my steering rack (TR4)
Thanks in advance