Hi Sergei -- On my '74 Argosy I installed new rockguards following Janet's thread
. Be careful in following those (or any) instructions. One should be sure to have enough room for the middle section before they arbitrarily place the side wing hinges -- like everything, plan ahead with a helper assisting with dry placement before holes are drilled. I didn't get to the point of painting my Argo and never even thought of segment protectors.
I can't help you create a poll with hierarchical branches dependent on a previous answer -- the software just doesn't allow it.