If you are in the Midlands go to
Herefordshire Aero Club at Shobdon. Join the club and syndicate and you become eligible to do it at just the normal PPL (non-syndicate) hire rate currently £112.95/hr for the Archer and £85.75/hr for the C152. They definitely have mature FIs. If you have, or can borrow, a caravan Shobdon has it's own small, clean site costing £9.50/ night (including electric hook-up) or £7.50 without. I'm biased.
I'm a member of HAC and make a round trip of almost 400 miles to get there. It's a friendly, pretty airfield with a good cafeteria, (so you won't need to cook) a bar for when you have finished flying so you won't even need to worry about how you are going to get home you can just stagger / crawl etc back to your caravan.
It's also situated in Herefordshire's Cider Country.
There are no prizes for guessing who is doing her IMC there at the moment and thoroughly enjoying it.
If you want to know more just send me an email or pm but please be prepared to wait a day or two for a reply as my internet access is limited when I'm away from home.