On the subject of Coribees, there's another junked one for sale that's anything but free - the creator is asking £7,500.
It looks like he's taken the MingMing concept and developed it even further, with a little trawler style doghouse. Built for doing the Jester it would seem.
It's on here at "April 2018".
https://corribee.org/for-sale-and-wanted/