But then there's something like
this Zebra(kenko) from a European owner on RetroBike...if your bike looked this good, it would be a keeper!

Owner says it has Tange tubing (possibly Champion #2)...those headlugs remind me of something from Losa (but, naw, couldn't be)
Edit: on 2nd look it appears the owner is/was none other than one of our own Benelux members: Elev12K in NL...small world.