Garage/Engineer to fit an inline clutch servo in the North

[mattcyp88]

Due to messing up my left knee, I'm looking to do the not too unusual step of fitting an inline brake servo between the clutch master and slave cylinders (there's a couple of links at the bottom which are good reads on the subject) to make it lighter.

John Halstead is recommended on the PistonHeads thread, and has been really useful on the phone when discussing the work. However, I'm based near Colne, and he is long trek down towards East Anglia for me.

Does anyone have any recommendations for a similar garage in the North who are willing to do work that's not routine like this, or even better have done the exact same job before?

Cheers!

Clutch servo threads:
https://www.ferrarichat.com/forum/threads/clutch-v...

https://www.pistonheads.com/gassing/topic.asp?h=0&...

[bobtail4x4]

any landrover specialist can do it,
a common fit on defenders,