Can recommend Eva and Ian at The Pilot Centre, Denham.
Usually a one-to-one or one-to-two course, run at your pace on your (time) terms. Tidy, well maintained aeroplanes. With 2 FIC instructors on staff they can usually fit you in reasonably quickly.
Not sure about the 100 hours - but don't forget that its also 25 solo signoffs and a recommendation from the supervising instructor which will remove the restriction.
You know it!
Horst