Depends where you are in the country, local to me there is Andy Sills Motorcycles in Purbrook nr Portsmouth. They are a Mash Dealer, plus theres always a couple of other brands kicking around, all Chinese copies but some of them look awesome. The Mash TT40 is a very good looking motorcycle, mechanically its a clone of the Honda XBR500 I think, designed in France, made in China. The Mash line up has the whole check list of current fashion off shoots, so theres something for everyone.
Andy and his Dad are top guys too, proper old school bikers.
Even though they are 'cheap' they are hard to justify, the TT40 is just under £5k which is dangerously close to a Suzuki SV650 which is a better bike in almost every way. Or if the styling is that important, 5k buys a lot of old Triumph on fleabay.