this is a great, inexpensive kit to modify. I ended up with papered fins, a second lower launch lug, a longer motor tube with no block, 4 centering rings (3 are homemade), a screw on motor retainer and the option to elongate the kit with a body tube top section in place of the plastic payload bay. 30 inches long and around 3 1/2 oz. w/o motor in this config.
My current camera setup makes recording of actual painting difficult. However, many of my videos show the steps involved. Take a look at some of my Rocketarium builds for examples. You can also check out the how-to videos from Apogee Components. They have specific videos on priming and painting.
I will have a video of my Bullet Bobby build up later today. It goes through the steps of priming and painting, but doesn't show actual spraying of paint.
