Hi I got it from Austars Models. They are an Australian large scale plane hobbyshop, that now has well stocked warehouses in the US, so worth a look.
It is going with an OS GT15cc, but if that's not enough I have an OS GT20cc. I'm sure the 15cc will be enough and the prop is really nice and light.
I've just finished the 4 wing servos and the reinforcement of the retract supports. Will keep on building at a good pace now, so I should be getting it in the air in a few weeks at the most.