So, since I started looking into this a couple years ago (before I destroyed my custom build), I was under the impression that you had to purchase and assemble your first HP motor at the event you intended to fly your L1 attempt, so that you could be supervised. This might be from a different club, I'm planning on joining NAR when the time comes. But Apogee and other distributors will sell you one for your attempt without an L1 cert? Just a little confused on that. Can you buy/build the motor before driving out to the flying field?