Bought this as it was the cheapest at the time for what I needed, turned out to be up there with one of my favourite builds...
Link to frame - - [£16.64]HSKRC XL5/6/7/8/9 232/283/294/360/390mm Carbon Fiber FPV Raicng Frame kit for RC Drone RC Parts from Toys Hobbies and Robot on banggood: http://rcmove.ru/ge0
This technique of 3D printing the wing ribs to hold a true aerofoil shape worked out super well! Combined with foam sheets, packing tape and the lightweight wooden spar, it performs amazingly well!