OK we're heading into winter, but if you get the right people and weather Scotland can be a delight ....
I was lucky with both about ten years ago up in Inverness. Took time off work and did the PPL in 3 weeks. Moray Firth has probably the best weather in Scotland in May - and the X-Country is to Orkney !! Don't know how the set up Highland AeroClub is for doing intensive courses after the Flying School folded. I also hear Moray Flying Club (at Kinloss) might be worth a look.
Personally, I reckon if you wanna fly in Scotland, learn in Scotland. It teaches you to respect the weather from Day 1, and 2, and 3 etc...
However, if you have a burning desire to get it done before next summer then I quite understand your thoughts about going abroad.