Kaos 60
Ed, keep looking. NIB kits are still out there.
I have an original Bridi Super Kaos waiting for the day I can devote the proper attention it deserves. That second listed auction (where the guy paid $124 for a kit) is one of these.
The Empire kitted a 60 version in the GP Blue box for several years back in the 80s.
If you'll post on the WANTED forums of RCU, etc., you might turn something up real quick.
Take a look at the photo in the first listed auction, and at the plans in the third listed auction (listed in the post above, that is). That is the original Kaos. It has an "open" nose, like a trainer.
The Super Kaos has an enclosed nose, a close-fitting cowl, really, which is a major PITA to fabricate but is definitely worth the effort to do so. I dunno what (if any) improvement the enclosed nose gives to flight characteristics, but it looks just plain great, and separates the model from the rest of those low-wing sporters, IMO.
If you want, I'll post a photo of my 40-size Super Kaos so you can see the difference.
Steve