Courage man; it will be worth it if you persevere. But the great thing about hair systems is you can try them and it's totally reversible - if you hate it you can put it in the trash and all you have lost is the price of the unit and the cut.
If Joanne Shepherd doesn't work out for any reason, this guy looks pretty impressive, although he is outside your 20 mile limit: http://www.hairreplacementstylist.co.uk/. If I were in the U.K. I might think of contacting him.