Having read all the posts, I really have decided to give up on my idea.
Although it is nice to hear of a workable solution!
Regarding this:-
Restrictions: The privileges are restricted to carrying out
under the supervision of FI(A) approved for this purpose
I have never been sure how an "FI(A) approved for this purpose " is defined ?
There is a very experienced instructor in our group who has been "supervising" me. He is however not affiliated with any training facility.
The plane is already being used for IMC courses using flying club instructors for other group members.