I'd go with a solitaire specced at 2.8. That would get me a 2.12 that went as well as any of the others, given my limitations and I'd have £200 spare. And I could always get a spot of weight taken off.
I have a rule that I will never spend more than £200 on a bat (and even with what I've obtained so far, I've remained inside that rule by quite some way, except for the Instinct), so this keeps me well within that. To be frank, if I am spending more than that, I'd want to be speccing it entirely to my satisfaction. Only the Solitaire gives me half the chance of that (even if it doesn't always come out quite like it!) and it's about 1/3 of the price of all the others!