Motorworks (UK) were selling the PFM kit quite recently. Just had a look and no longer listed. Probably due to them being slow moving stock. I almost bought one but I was concerned that it could be too much braking. If that’s possible
I can’t find an email address for them, only a Fax number!!!!! This day and age!
There is an enquiry form of sort, you need to scroll down to the bottom.
https://www.motorworks.co.uk/vlive/Help/PartsQuoteEnquiry.php
Happy to phone them on your behalf next week if the linky no worky.