The problem is, EASA introduced this in a very tight schedule, and the
proposed requirements have been changed several times in the process.
Litaraly nobody knows at this point exactly how it will work and how to
really deal with it in real life.

Basically, you will need an approved "mainenance programme". With this,
you can as a private owner still do all the maintenance yourself. I
guess your beast chance to get a detailed answer is to contact an
European glider association, they really work on this. Probably your
best starting point would be to contact the British Gliding Association,
for language reasons.