You will be lucky to get a car with under 30k within your budget imo UK or import!
Import will always be a gamble, but there is money to be saved, cheaper cars, better spec/equipped.
I went for a UK with PPP in the end after being in the same position as yourself, made sure it had stuff like FSH and loads of reciepts. I would have loved an STi or type R but end of the day im only 21 and insurance was going to be double!
Im happy with the performance of mine just now, made 245.6 BHP standard recently on the rr clocked up 85k so far and still going strong