I've seen this bike at Shannonville once, years ago. It is/was Andy's bike (Adjustment Tech). At that time, it looked really good up close.
No idea how well it works ... I don't think this is something that you want to push the limits with.
And that begs the question ... what do you do with it? You don't want to ride it hard for fear of crashing it, and it's not a very good street bike. It's not a real YZR. If you want a track bike, there are plenty of better choices. If you want a street bike, likewise. If you want a really cool, interesting piece ... then what's it worth to someone other than the person who built it?
I suspect the owner will end up keeping it ... and honestly, with something special like this, it's almost always worth more to the person who built it than it is to anyone else.
I like this bike, but I'd rather keep my own FZR400 race bike that I've also spent far more on than I could ever sell it for ...