This is another one of those plans that shows a very slight dihedral angle that is in my opinion inadequate for proper roll response. My short kit comes with two dihedral gauges. One is 4.5 degrees as shown on the plan, and the other is 8.75 degrees, which will make the plane roll properly. (4.9″ at each tip) I’ll send you both, and you choose which one you want. Or just trim the tail end from the ribs and add ailerons.
You also can have your choice of engine beams, or a kit without beams and without the engine beam notches in the firewall.