Okay, having looked at how you did your "footstuff" in the original mapping, it's not a big deal to make the "toecap" and the "invisible" UVs line up with the UVs for the feet.
I have to wonder about the resolution of those parts though. It doesn't seem to me that there's enough geometry there to function well as textured stockings. By the time they get morphed halfway up the calves, the textures would be stretched way too much, so I think the better idea would be for them to be higher-res and start out at full size and then shrunk down, not the other way around.
Unless I'm just misunderstanding their purpose?

And speaking of which, why are they a part of the figure itself? Why not just a separate conforming figure?

Let me know whether you want a high res version or a lo res version. If you do actually want a high res version, I still don't know how to avoid the lining up problems that led to this whole situation in the first place, and again, I thought it was agreed it would be easier to do the lo res and adapt it to the high res.