A co-op sounds pretty decent indeed. For this smaller piece, the wick hole could be drilled for the SS wick (here 1.6mm, or even a bit larger) and then partially drilled to 3mm, say 5mm or so, as to have a socket for the pyrex tube for ease in wrapping. Just plug in the pyrex, wrap the coil and slip a wick in the assembly and vape away. A foot of pyrex would go a long way.