I agree! The idea of masking every line is a nightmare. I was even thinking about having a vinyl decal cut for each section to use as a mask, but I'm still leery of taking on this project.
Do you happen to know what the color is? Mine look like a charcoal color, but I assume it was originally the camera case black. If I do shoot it, I'll probably go with rustoleum semigloss or satin rather than using a rattle can