Yes, you can repair the ribs. Here's a little info about the parts of the wing and their purpose. The main part of the wing that you need to pay the most attention to are the spars. They are the main structural component in the wing, so if you need to repair these make sure that the repairs are done well and have plenty of strength.

Also pay very close attention to any shear webbing between the top and bottom spars. They are also a critical load bearing structure. If the shear webs are cracked you need to make sure to repair them. If you can it's probably easiest to just cut out the damaged one and fabricate a new webbing, just pay attention the direction of the wood grain because this is what gives it strength. The grain of shear webbing normally runs vertically.

Now to the ribs. The main purpose of the ribs is to maintain the shape of the airfoil of the wing. For the most part they are not a load bearing structure. So doing what you said above is a way to repair the ribs. Just as long as it maintains it's original shape you will be fine.

Hope this helps

Ken