What's your intended usage for it? Any vintage bike that comes to me gets completely disassembled. So, if you went that route, might as well have it powder coated or at least remove what paint you can. You can disassemble and soak the components to remove the paint pretty easily.

I'm not a frame builder or other expert, but I don't think that's a sloping or semi-sloping fork crown. Looks just like a traditional lugged fork crown to me.