The top for sure needs a solid color. There are a bunch of patched holes in the top and a botched stain job under the botched paint on the rest. I suspect it will need to get it to bare wood. The paint doesn't stick to the primer that well, nor the primer to the wood, so I think both will need to go. When I've done a bit of test sanding it doesn't come off nice and sandy. It's not quite clumpy, just feels kind of soft.
I don't have spray equipment but have had pretty good luck luck finishing using MTN94 spray paints. They are great for drip control, very forgiving, and sand beautifully flat. They go on sort of like a filling primer, and don't need an undercoat of primer.
I may try the ROS on the top and back and headstock...maybe on the neck too? I don't want to change the shape, and the ROS is pretty aggressive. Probably more inclined to use the palm sander(
it's really helpful) on the sides. Not as quick but more controllable. These ES's were not designed with refinishing in mind. They seem to have concave surfaces everywhere. The only truly flat surfaces seem to be on the headstock.
Seems a shame to take the guitar apart when I finally get it playing and sounding to my liking, but sanding seems the next order of business.... so así es la vida as they say in my wife{s culture.
Thanks! I was hoping there'd be an easier way, but at least I can go at it knowing that elbow grease is the only viable option!