I for one would be very interested, especially as you will be able to visually inspect (Photo?) the back of the valves and see just how much this is a problem.
How many miles has your Plus 4 covered? mine had done 30k and wasn't displaying any of the symptoms associated with the problem.
WRT to a manual I trawled through the links provided by Rene and some other threads on TM, I think this US Haynes Manual for the Ford Focus will cover the Morgan Engine. https://haynes.com/en-gb/ford/focus/2012-2018-0 it's only available in print and since I decided not to take the intake Manifold off I haven't bought it.
