Soran, Ditto what Tarek said. In fact, I wouldn't mind if you opened a new topic for all the How-To videos for Sketch-Up. Not just yours, but for anyone to post in.
I had Sketch-Up on my hard drive from when someone sent me a file back in 2008 or so. I played with the program for about an hour and gave up. I installed the new version just a few days ago.
After about four days, here's what I have to show for it:
http://i1170.photobucket.com/albums/r528/Getgen/APT/APT_LF-iso_24-June-2015.jpg
You probably could have done this in four hours instead of days. I used your warp nacelle video to do the sensor dish. Took me four or five tries, but I got it done. Thanks!