Oh ok, I've never known the correct name. So, I've been calling them the exterior ribs. I thought about them if full body replacement was selected, I could restore them, get others to select the best or add others for additional support.
I am lucky because the garage that did the service on my bus has another International gutted out in their bone yard. The engine and tranny are gone and it is just sitting there. I thought about offering the owner a hundred bucks for the rub rails.
A couple of my ribs are rusted through in spots. I would want to replace or replace those sections. I can weld and restore them if need be but, I would rather not just for safety and structure. Adding another 1 or 2 per side wouldn't hurt or look bad overall.
I plan to do a lift of the roof as well, if I were to replace the body panels I would just coordinate the lift and body panels. Replace the body panels, once it is buttoned up, do the lift, add the new body panels where the windows once were.
I have enough sheet metal to encircle the bus top section now, ordering the same to replace the bottom half would be a couple hundred bucks. Well worth it if, it came to it.
So, I don't know. I have so much work into the bus and it is low mileage, I don't want to scrap it just because of rust.