The design of the four star wing doesn't allow for this aproach. You will end up with a ledge someplace along the way by trying this. The best approach is to modify that #4 ribs to match the #3 rib from the spar forward. You then have the decession of whether to keep the sub spars or not. If you do, you will need to cut each of the notches for them deeper by the thickness of the sheeting.

Given the tendency for the ribs to break while building, I'm sure this excersice will end in frustration for a new builder. As stated before, I would build to the plans and only re-enforce the landing gear mount plate and add a tri stock along the bottom of the fuseage in the firs bay behind the wing and the under the horz stab.

Flaps will give you fits with a 4*. The tend to float on landing anyway, so something else contributing to lift at that point will result in over running the landing strip and/or loss of control do to the lack of air speed over the surfaces.

Don