The HK Wing (720p) lens has same dia and thread as the #11. I removed the lens of my #11, it was quite easy, seems to be locked with a dab of clear green Glyptal type solvent based sealer. I unscrewed it carefully, removing all traces of sealer and dirt before final removal.
The CMOS looks about the same size as the one in the HK Wing camera, so that's good. Focus is still rough, about two turns out from full in.
I hope this will have the benefits of both cams - #11 light weight (18.1g with new lens), great video processor and format, the HK lens has 120deg aov and less vignetting.
Video - still work to do, but vignetting minimal
I'm not completely done, there's a better video about 2 pages ahead. I see good focus on the right 2/3 of frame, the focus on the left 1/3 is closer. So I put near objects on the left. The reason is, I believe, that the lens receptacle is not true to the cmos, or the cmos is not flat. To fix would be risky, maybe heat the cmos receptacle with a heat gun and straighten...
Another video (blue sky!) here