"I Admit It. I Got It Wrong About UKIP"

Autonomous Mind's post title is slightly misleading.
After pointing out that UKIP is, much like the other parties, pretty much a policy-free-zone, what follows is an interesting summary of the actual mechanics of leaving the EU and what it might mean in terms of 'free trade' (which for the sake of this discussion we shall agree is A Good Thing).
I've disabled comments here, leave a comment over there instead.