If you are determined to use titanium, I would use CP-1 for the guard & pins. CP-1 will peen but it is not easly. Use the same alloy for the guard and pins or you will see the pins when anodized.
You can anodize after installation but the process is not safe IMO.
Butch, that knife looks great. I especially like how the matching spacer sets off the guard. :thumbup: