Thats prefect, BUT when you sand it, use a fine one anyway, wet and dry to you wet the paper, dont use anything to course even to start with, as you will make youself more work.
But yeah, you pretty much got it. The only other thing is, take your time, even if its takes weeks. Because if you mess up the spraying, you have to start again really.
When you spray with cans, spray from miles back, and let it build up coats, so you might get patchy paint work, but it builds up, just to avoid any running, will look bettter in the long run
