Thanks. About as simple as you can make it. Just like all the other roll-on methods without the thinning and sanding.
Removed hood, windshield frame, and anything that attached to the tub. Re-bent, shaped sheet metal from PO dents and gashes. Sanded out the rust areas first with a wire brush tool for a drill then sanded with 150 grit on an orbital sander. Those areas went down to metal. If there wasn't any rust or bad paint I sanded just enough to roughen the surface. Wiped down with mineral spirits. Masked everything off only because I tried a spray can at first. Used Rustoleum High Heat Satin Black straight from the can on a 4" foam roller. Dabbed with a brush on areas that would be covered by something like where the tail lights went or behind hinges. Covered a panel at a time with the roller putting it on about as thin as I could but still covering everything. After going around the whole vehicle, went back as lightly as I could without adding paint and re-rolled everything to remove bubbles and lines. Let it dry for 24hrs and re-coated. Still gave it a texture and even though it takes about a month to cure, the kids have already ran toys or bikes against it with no markings.
My neighbor, who is hyper-critical, had to get close to see the minor imperfections. The texture and low-luster hide things really well. Except for one area where the PO damaged the rear quarter panel, you have to use the glare of the paint in the sunlight to see where I fixed the dents and scrapes.