As of May 2018, I now believe Chipper can be built in 700 hours if you purchase the metal wing option. The metal wings will save up to 300 hours over a fabric installation.
Furthermore, if you purchase a Quick Build kit and have us install the metal skins, your build time should be about 350 hours. This solution is certified by the FAA as compliant with the 51% rule.
We don't include the time involved with painting the airplane (you don't need to paint metal.) We also don't include the task of wiring the instrument panel in this estimate. The complexity and options you choose for that is your decision.