So, apparently painting is a lot more difficult than I thought. After a good amount of research, I’ve reworked the plan and bought all the appropriate products.
- Grind to remove remaining/missed screws and nubs.
- Wire brush all rust spots.
- TSP (TriSodium Phosphate) — Clean of grease/glue/etc.
- Ospho Rust Treatment for Metal — Galvanized Metal Etch & Rust Conversion/Primer
- One coat Rust-Oleum Professional White Clean Metal Primer
- One coat Rust-Oleum Professional Paint
The end color will be Smoke Grey in this case as it was the least offensive not-white color available locally. So far as I can tell via hours of research and talking to several people, this is indeed the best route to go if not overkill. As I have no bloody intention of having to do this again, overkill is good!
I’ve yet to decide what manner of topping will go onto this. If I go with foam panels for the floor, I will likely end up going with a spray in truck bed liner for long term durability and sound dampening. If I go with a high density spray in foam for the floor similar to what I intend to do for walls and ceiling, it will likely stay as it is. The latter is a bit more expensive in the short term, but I am leaning strongly in that direction.