Consider the On One Midge as well. Yes, it's a drop bar, but it's meant to be set up high, and it's the most "compact" bar I've ever seen - very short reach and drop. It's very ergo. I'll post a photo if you want. I've got mine setup with bar-ends.

I've read many comments that moustache bars aren't good for distance, and 20 miles is distance to me. I went to my LBS and almost bought some, but didn't really see some of the various hand positions as very usable.