I have virtually the same camera as yours. I mounted it to a Taylor Craft 450 in a few different ways but each time I wanted to point it forward the prop was in the way and it was just annoying to watch the vid. I eventually mounted it to the right wing (for what its worth the little bit of weight will made no difference so don't fret about that bit of weight). To mount it to the wing I cut a small piece of 1/8" ply the width of the camera and about 3/8"longer on each end - so there was 3/8" of ply sticking out past the top and bottom of the camera. I then drilled 2 small servo sized holes through the ply and into the wing. These holes were hardended with then CA. Just be sure to tilt the ply down a couple of degrees from horizontal so it can get a decent view of the ground/horizon (about 5 degrees is what I used). I bought some industrial Velcro-it looks similar to rgular Velco but the Hook part is much heaveir! I attached the Hook part to the plywood with Shoe Goo - use whatever you have that is like it (regular silicone will work as well). I attached the soft loop part to the camera using ShoeGoo as well (after I removed the screw-on mounting bracket). When it was all dry I took 2 small rubber bands (I was being extra cautious - not wanting to loose my expensive $20 camera ;-) and wrapped a small band around the top and bottom of the camera and the extra 3/8" of 1/8" ply that stuck out beyond each end of the camera. Of course it never moved. I eventually removed the rubber bands and the camera never moved.

I though all was great until I watched the video. The video streams through the computer screen from the side - bummer to watch!. Don't know why I never thought of it before I went to all that work, but there is an easy fix. Do a search on rotating video or tuning video sideways on Google or Bing. There are free programs out there that will rotate the video on the screen to the correct orientation. However in the end I removed all that and mounted the camera vertically upright between the landing gear. The mount looked like a cross (I removed the 1/8" ply from the wing and reused it) with the horizontal arms connected to the landing gear and of course with the camera pointing down just enough so that you don't see the prop. The video was easier to watch this way since it was streaming by from the top of the screen to the bottom and was not as disorienting. This worked pretty well until one flight where a new HobbyKing 3 cell Lipo had of the the 3 cells die during the flight - barely had enough juice to set up a partial landing before it played lawn darts with the ground. So no more HobbyKing junk LiPo's for me - and no they wouldn't warranty it, even though it was new and on it;s 3 rd flight!. Anyway the camera survived the impact! Tough little camera! I bought a new plane but haven't got it together and the mount, of course didn't make it either but I think you can use the above informaion to make your own - between the landing gear mount or use the wing and just rotate it. Either works.

Sorry for such a long winded reply but I waned to let you know the few things I had already tried/failed at.