Sorry, i am not in NY my brother is in NY. I am very far from that. But yes now i have finally decided i will build the wings in 2 separate core as i mentioned earlier & then join them together as the aerofoil is thin at the tip. I am good at cutting cores so this will not be a problem, the only thing was i am building this type of wing for the first time.

Thanks for all your help will keep you updated on this.