Thank you so much for that reply Geoff. I am now even more keen to get my present project finished and get looking for an early 401. There was one advertised on Car and Classic not long ago which you may have seen.
In making a new dash for the TC my preference for white switchgear has led me to source these expensive items as an alternative to the standard MG black. I also invested in a new white 'Brooklands' steering wheel to match.
Prototype of my new dash arrangement.
https://i.postimg.cc/Kv3HMQgY/IMG-0651.jpg
Interesting you should mention 'Alfin' brake drums as I have also forked out for those all round. (Yes, I know they are not needed on the back but they balance the look).
https://i.postimg.cc/QMm43yvf/IMG-0168.jpg
Incidentally, has anyone you know of supercharged a 401?