I think your friend will find a few cars worth considering with that budget. try Allon White, Bell and Colvill, Brands Hatch Morgan, Melvin Rutter - all around the London Area. there are not many around at present so he/she may have to bide their time.

https://allonwhite.co.uk/used-morgan-cars-for-sale-uk/2010-morgan-plus-4-metallic-monterey-blue-u354

https://www.morgan-motor.com/berrybrook/used-car/2011-plus-4-in-sport-sand-8756/

Kevin

2009 Morgan Plus 4 - 4 seater
2015 Subaru Forester 2.0ltr