Terrific Gio, great stuff. Exactly the kind of thing we want to see here.
What's the problem using WD-40 near 2K paint?
For cleanup, most of those options would probably work, but it would be easier (and probably safer) to use an automotive cleaner/degreaser. You should be able to get it in an auto parts store- it may come in a spray bottle, and it might smell like oranges or something- but it's great for this kind of cleaning.