I was amazed at seeing the mock-up of the Viper Fan in Sport Aviation. I wish I could have seen it in person at Air Venture. Has anyone seen the projected cost of the kit and operating expenses? My dreams need some hard figures to become more realistic . Seriously, it really is amazing how far homebuilding has come in just the 8 years I've been watching it. I wonder what sort of creations will be available in the next 8. Any predictions???