I'm selling this finder because I decided I didn't like the SWC at all (or the Arca-Swiss 6x9 I thought about using Hasselblad backs on).
The SWC I bought had other issues not described in the listing on that auction site (loose front element, loose feet, a back that didn't open, etc.), so I returned that rather quickly. Still, I was able to tell I wasn't going to enjoy it. The Arca was really cool, but I realized it just wasn't going to work. Lots of dumb mistakes on my part...
This finder is overall in good condition. The lens looks great--no marks that I can see. The mirror does look like someone took to wiping it down to clean it, and is fairly scuffed. However, it works perfect and reflects the light perfect--you can't see any of the marks when viewing through it, and it won't affect its use at all. And I guess now you don't have to feel nervous if you want to wipe it down since it's already all marked up (lemons out of lemonade?).
I included a few photos to try to best show the marks as I can--sometimes it's hard to catch. The marks affect almost the entire mirror--in photos where they appear to cut out, it's because enough light came through the viewfinder to wash them out.
Asking $250 + shipping.