One of the most common, most enduring and biggest mistakes Wannabes make is investing in the cheapest possible PPL.
I used to teach 3 week £2,995 UK PPL courses in 1999 and I also used to do checkouts for those coming back from doing a PPL course abroad so I have some insight into this.
There are some perfectly excellent UK schools offering a realistic PPL course for £6,500 who can also then take you on to the CPL, Multi and IR with the same aircraft, airfields and instructor. Which would put you at a massive advantage compared to some Florida monkey who crammed 3 weeks of instruction into North American skies and then thinks they know how to fly privately in the UK.
The PPL is the foundation of your house. Weak foundations will give rise to cracks and future expense as you continue to build. Every time.
Good luck,
WWW