I believe you have a "Do it yourself" - "Rope awning". My old Shasta had one, with poles and tie downs for the poles. I do love the idea of the flag holders and had mulled that idea over. Good to see the installation. I had considered a lower placement if I did an awning. At present, I use a 10ft. market umbrella, like most use on a patio. I take it and a base.
I have found the "Rope Awnings" at J.C. Whitney's website under the RV section, different lengths are sold, from about $120.00 U.S and up and I had considered ordering one, installing the track on my Scamp
with some interior alum. strips for support. The metal legs I would try to mount in the flag pole brackets.
Overall, yours looks great and about all it needs to have to compete with Whitney's is fancy stripes.