Hello! Iv salvaged a DTI from work, only problem is some idiot broke the stylus and just put it back in the box for someone else to find! Can't seem to find a replacement for sale so I'm going to make one. The only part of the stylus left is it's mount to the actual guage, I can just measure and copy that. But what about the rest in particular the tip? What do I need to take into consideration for the length and shape of the tip? Was going to do it in silver steel, should I heat treat it after? Thanks!