Joe-Black has it right. You either build an experimental airplane yourself and hope you did a good job, or; you buy one from someone else and hope they did a good job...
I bought this plane from a highly-respected engineer of the Glasair SII-S design. He now builds Glasairs for third-party guys (like me) and also owns the factory for the more impressive "Turbine Legend" which hauls around at more than 300 KTS!!!
I have confidence! I bought a 4-time award winner!
Check out the Turbine Legend website...
Turbine Legend
I still love my VehiCross!!!