The ClickBond nutplates appeared to have cured sufficiently, so I fitted the right wingtip to the wing, with the help of my friends Jim and Tom. To my utter joy, the tip came out perfectly in line (vertically) with the trailing edge of the aileron. Sweet. Of course, installing floating nutplates helps immensely in this regard.
Once the tip was tightened down, I also test-fit the video camera mount on the top side of the wing. I think this setup will work out great for my small GoPro Hero cameras.
Next, I used a power belt sander and a sanding block to final-trim the trailing edge of the tip to match the line of the trailing edge of the aileron. (Previously, I had sanded the edge of the tip in a straight line from the aileron to the EXISTING corner of the tip, but today, I straightened it out so the entire trailing edge of the wing -- flap, aileron and tip, are all in a perfect line.) I then rounded the trailing edge of the tip to match the radius of the control surfaces.
Finally, I spent some more time trimming the gap between the wing root fairing and the fuselage to accommodate the rubber gasket material. I think I have the gap just about right but, of course, I'm an optimist.