hello a friend and i starting on a kf4 he purchased. it was compleated from original owner and has since been taken apart we have a very old 4 inch manual. the wings and frame are together. we attached the wings and ran a line from front of wing tip to wing tip and the line is crossing behind the front wing bolts about 4 inches. is the front of the wings supose to be angled back or straight across. we cant find the correct answer in this overcomplicated manual. there is half a page on how to incert a bolt lol...