Sorry all I have been unavoidably grumpy for some months and not checking in as I had 6 months enforced no Mog rest due to a bad back.
To say I wasn't a hay Bunny is an understatement. 😒
The company I used for my master cylinder was Past Parts. They specialise in brake and clutch refurbishment. Great to deal with a the refurbished master I had don was bored out, a stainless tube inserted and then machined back to standard to allow standard replacement seals in future. Great service and the fraction of the price of a new unit.
Paul