I own a Sonex and I used to be 6' tall before I got old. It will do aerobatics in America, but apparantly Australian air is different so not allowed here. I have full leg room and heaps of head, elbow, room, and some luggage space. Oh and I'm 100KG. 112KTS @ 15 LPH AUW.
The Sonex, being a short fuselage small control input aircraft, I would suggest you think about things like this before strapping on a Pitts.
If you want to fly one, PM me. I also have an Auster if you really want a challenge.