i was in the same boat...and still am .. i have both wings completed except for the wing caps i forgot to drill the hole in one of the blocks for the landing gear so i will have to figure that out.. you need something to pin the parts down to.. i went to menards and bought a sheet of 1 1/2" pink foam insulation and went to walmart and bought 500 needles with the balls on the top... i really didnt follow the instructions to a T because i couldnt understand what the hell they were talking about... i layed down one piece of sheeting right behing the leading edge and pinned it... then pined the trailing edge in place then pinned the square rod in place that the wing ribs sit on.... then i setup all the ribs on the plan inside the square rod and used the orange thing to get them verticle then used pins next to the ribs to hold them up... after that was done i would look at the trailing edge and see if there was any gaps from the wing ribs to the trailing edge... if so... i would trim the ribs a little bit then move the trailing edge in so they all touch, pin down again CA the square rod down to the sheeting then go fron there ca the wing ribs in place ca the wing ribs to the center of the trailing edge(what i did was put a little piece of 1/16 balsa under the back of each rib to get the height righ on the trailing edge... hope this helps... now sure if its right as i havent flew it yet ... should give you a shot though my wings look ok