For me it would be a no-brainer: The Nakamura — for sure! And I'll go against the grain here: don't worry about whether it will mount fenders. Since I've gone to treadless tires, I've found that they are not as necessary as I once thought for commuting. If you are getting a rooster tail, a seat-post mounted MTB flap should suffice. The frame may turn out to be some flavor of double butted Ishiwata. Or maybe Tange. You'll need to pull down all the bearings and repack them. Apply a set of stirrups and straps, service the chain and you're off to work!

I think that Sheldon Harris has a blurb on the Nakamura in his review of bike marques. — Cheers ... Lorne