355 Alternator Heat Sheild

I know its probably out there somewhere but I promise I looked for it and never found dimensions and thats what I'm looking for. So if someone could help with this here is my situation. I am going to fabricate my own heat sheild for my alternator but I would like to have the basic part ready to install for my mechanic when he does a minor service on my 355 next week. I have found a tube of titanium and it appears this will work extremely well as it was recommended by a friend as a very poor heat conductor. I tested this thin sheet by holding it bare handed and putting a torch to the metal about 5-6 inches from my hand. The metal became red hot and I never felt the slightest heat in my hand. In any event, If anyone has made their own alt. sheild I would really appreciate the dimensions for the top bolt hole, apprx width and apprx how long is the alternator because I would like to bend the end down to cover the back as I just recently installed FABSPEED headers ceramic coated but still worried about heat. Finally if anyone knows a reason that a titanium metal would be a bad idea for a heat sheild please let me know. Thanks in advance Gentlemen I appreciate any guidance in this area!!!!!