RE: Time to decide.
I voted to wait until you can move to a fully competitive 2 Meter Pattern Ship. You have done your time on the learning planes. If your goal is really the NATS, then get the most competitive plane you can. Buy it used to save money. Good deals will be available between seasons.
Of the planes you listed, the Wind 110 is the clear winner in my opinion. It is an exceptional plane, but still not a 2 meter.