[Porsche-O-Phile]

Exactly - someone should sit down and clean that up nicely. Just having a bunch of segments/trace lines in ACAD will yield a humongous .dwg and a crummy end product. It should be actually drafted carefully so lines close, etc. (makes it easier to create shaded/hatch areas later if you want) using lines, arcs, etc. Not a bunch of line segments floating in space that might or might not close (often what you get from third-party apps that convert stuff from .dxfs for example). Those are the things that make me and my guys tear our hair out when we get them as part of record drawings, since they're so cumbersome to use. Don't even get me started on poorly-drafted/translated files that have 15,000 layers with meaningless names. It's far more useful when things are on sensible layers so one can figure out what's what.

I know not 100% applicable here, venting a little. Long story short, someone really should sit down with that and draft it nicely - it wouldn't take more than 3-4 hours really, and even that's probably on the high side.