Looks unreal! Glad you had some success with a revised polishing technique, I'm sure your arms are feeling it.

Wax on, wax off

Shame about the chip, but honestly, these things happen. If it were me I'd push on with the rest of the build and come back to it later, but you'll get away with a small drop fill. I'd spray some of the paint you have used into the cap and then use something pointy and non porus like a clean nail to scoop up a blob and drop it on. If you do, resist the urge to fiddle with it. Get a decent drop on, hopefully just filling the chip and just leave it to flatten out and dry. You''ll end up with a better result. If you fiddle, you'll end up making a bigger mess.