I have also been following the thread on the ceramic wick. I watched Scubabatdan's video with the wick that has the coil inside the hole. This gave me an idea, wanted to see what you think about it.
1. Take a piece of the stone and drill a hole through it.
2. Cut the stone down to where is is a cylinder and fits tightly inside the wick barrel of the replaceable head.
3. Make the coil on a drill bit and fit it inside the cylinder with one end going out the top and the other going out the bottom.
4. The top side of the coil could either be pinched between the wick and the wick barrel or between the center post and the wick barrel.
5. The bottom side of the coil would be ran as usual between the silicon insulator and the contact post.
I hope that made sense, I can picture it pretty well in my head anyway.
Not sure if this would be doable in such a small space, but I think it would work pretty well as long at it did not flood.