I have watched many Youtube quilting videos, but the best one I ever watched was by Mr. Domestic, he was zoomed right in on his needle from the front, it was just like I was the one sewing, I think he did it with a chest mount GoPro. Your idea of using the head mount is a good one too.Sounds like a fun thing to do with DGS, and figuring out how to make it happen. Enjoy it when it actually happens, he will remember it forever.