I'm halfway through, I would estimate, building the first and only (at this stage) Quick build Sonex in Australia. This will be my second kit build plane as I'm currently flying my Aeropup while I build the Sonex. I have the Aerovee Turbo engine on the shelf ready to assemble. My current plane also is powered by an Aerovee so no surprises there either. I am extremely happy I bought the quick build option this time. Still deciding what instruments to use and will be the last thing I buy.
good luck in what you decide.
-Brett
p.s. oh and you'll need your wife's approval,,,,,,, someone has to help move wings around, hold onto spanners while you tighten hard to reach bolts and bits and bobs like that... I am forever needing 5 mins help here and there.