Well, for all my complaining in the previous post, my carrier really didn't take all that long to make. A couple of hours for cutting, and a day for actually putting it together. The padding of the straps was a huge pain in the neck, and I spent quite a long time trying to figure out how to attach the waistband to the body of the carrier. (I'm apparently a visual learner for sewing. Written instructions puzzle me.) And I should've ordered my webbing and buckles, since the stuff from REI isn't really quite right (heavy duty enough, but not right). Oh, and I broke one needle, but that's actually pretty good considering the number of layers I was sewing through. My machine actually did a lot better than I expected.
I haven't really had a chance to test it too much, but I can put M up in it, and it's like a real carrier. And it's pretty. :) I might even make another one, with some changes to make it more comfy. I'll have to try the new one out a bit more to figure out what exactly I'll need, but all in all I'm pleased. And as you can see, so is M.