'Buster.
Speaking as someone who actually flies 767 -300's from BHX to SFB has anyone had the good grace to point out to you that BHX is probably Britains most unlikely succesfull long haul departure point? Since the runway has the smoothness of a slag heap and the length is such that anything over +15 and a QNH under 1013 means you are totally screwed to even make the Isle of Man, never mind Orlando, good connections to BHX will not matter if your passengers are regularly treated to an impromptu visit to Bangors duty free enroute to their holiday!
I note that your website does not mention aircraft. So if you have solved the Airbus/Boeing equations to show that without the ten tonns of freight needed to make this route pay (allowing for the reduced number of seats up top) then you truly are onto a winner. Please let us, in the mainstream holiday airlines know how to do it.
The other point you will have to remember is that some of the UK charter airlines are aware that their long haul product is not good enough. There are moves afoot already to introduce premium seating throughout and back seat IFE to all seats within the next two years to ALL long haul destinations, not just Orlando. That will seriously erode your advantage.
Until then I will take the web site and the enthusiastic posts above as so much 'hot air', which by the way is not good for max take off weights!!