Hello Josh,
Welcome to the boards! I'm glad you're here and you have some good questions. I'd be happy to offer my two cents on your questions if you don't mind!
1. Both airplanes really do fly the same. There are a lot of Waiex owners who are cautious in strong crosswinds (myself included); if you do a little searching on here you can find a lot more information on Waiex crosswind capability. Otherwise, they're the same!
2. That would be a violation on the intent and wording of the regulations. We as builders are required to build the "majority" of the airplane if you want it certified as an E-AB airplane. If building isn't your thing that's no problem at all; you can generally find used ones for sale with a little bit of internet searching. For example,
www.barnstormers.com normally is an excellent place to start looking.
3. The original Sonex was powered by the Jab 2200 (80 hp) and many builders went with this engine. While I'm not an expert, my guess is that very few people still request this engine anymore. The AeroVee offers the same power at a greatly reduced cost. Also, if you're going to be flying with a passenger on regular occasions, you may run into aft c.g. issues with the Jab 2200. I'd advise the AeroVee or Jab 3300 if you want the higher performance.
4. Anywhere from 5-7 gallons per hour in cruise is my guess. Joe Norris, factory employee and head T-Flight Training instructor recently flew the turbo demonstrator to Florida. As others have already said, he was running at around 5 gallons per hour average.
5. There are a lot of people who would be happy to help you! The Sonex community is a great one and you'll find tons of people willing to help. You can also use most A&P's as the Sonex is a simple, robust design. If you'd like additional information on what to look at when looking over flying airplanes for sale, look over at the Foundation website (
www.sonexfoundation.com) for helpful information.
6. Hopefully someone can help you!
7. I'm not sure about this one, but best of luck if that's your goal!
If you have any other questions, please let us know!