N8theSk8

I am finishing up a GP Super Aeromaster from a friend. He had built up the fuse but left the 2 pieces that fit the back of the fuselage and the tail(Sorry their names slip my mind right now). He has also already cut the hinge slots for the rudder and elevator. When trying to dry fit them, I noticed that if I just glue them on, it will block the elevator when it is in the up position. Has anyone who has built this kit had the same issue? Is there any shaping to be done? Thanks for your help.