Hi Rajan, thanks for the pics. Infact i had already downloaded lots of pics over google and was confused to see so many types of hubs on punto and linea. The hub which you posted can be manufactured. The only stuff is the internal gears on the hub. That needs a special internal gear cutting machine. There are plenty i know but will need exact dimensions of the same. Pitch and all etc. The second thought which came to your mind had also tickled me earlier. I think its better to open up the old hubs and drill new 100 PCD holes into it. There wont be any issue in material strength etc. The hubs are quite rigid. The best thing is that they will be reverse compatible.