Hi to another Ontariariarian, hmmm... shelves. Books are pretty heavy so you will probably have to screw in some sort of support flanges in those pristine walls. I would not want a rain of paperbacks et al on my head when asleep.
Ikea has some floating shelves that are light, but you would have to rig up some form of containment of the items held there, just moving around in your trailer would probably cause the items on the shelf to creep off.
I am assuming you are talking about the perpendicular veneered walls, not the actual peripheral walls of the AS.
The only awning on my 62 is on the curb side, I can't say I have ever seen an awning on the street side of an AS before, usually they are by/over the door. The windows all round on mine have exterior screw in snaps that were for some kind of covers/awnings at some point, long missing. I think I will recreate them.
Good luck on the shelves.
Leonie