In the current market and with exchange rates as they are, I'm afraid you're dreaming if you think you can pick up a facelift JDM with 50k for £9k.
Previously imported cars from Japan will generally have higher mileage or be pre-facelift; I've been on this forum for a number of years and have only heard of two facelift models entering the UK, so finding one already here will be like a needle in a haystack.
The link posted above is a company that deal with Japanese imports, they aren't a 'UK car dealership' in the terms of reselling UK versions. Virtually everything on their books is sourced direct from Japan unless it's a trade in that they've accepted; in any case their adverts will state this fact.
What you're after will exist, and will be obtainable via import (there are a handful of very reputable companies in the UK that offer this service - Torque GT and BHP Imports have been used by members of this forum) but I think you'll struggle / be extremely lucky to get what you want for that budget.