I believe the plane was distroyed after the third crankshaft failure but his website is still running
What was up with his choice of crankshafts that caused him to have three of them fail? Was it a quality control issue, the way the engines were being maintained, how they were being run?

He's gonna grow up and it's tough to cram two full size people in a KR.
That was going to be my other point about the KRs. I'm 5'9" and 165 lbs and it's an uneasy fit for someone my size when you have another person in there with you. It's a great little plane but it's not something you really want to have if you're intending on running any great distance with an adult sized passenger. One of my now deceased friends used to own one and he joked the only time he got intimate with his wife anymore (both being in their 60s) was when they would fly together.