crankcase question at transmission

I have a 1983 kz750-H3 that I bought from another guy about 1 1/2yrs ago. My dad and I have recently tore it down because of a cam chain noise. While going through it we notice some wear on the bottom case where the transmission bearing sits for the drive sprocket. I hope I said all that right. Anyways we did a micro check and it is 3 thousands off.
The questions I have is this something to worry about and is this something that can be fixed and where or who could repair it. I have attached a picture from the kawi site to show the area I am talking about.
I currently live in TX or at least until my company transfers me to another location.

thanks,

Max

G'day mate,

just reading your post so you may have already solved it, would need picture of the actual case showing wear AND picture of the bearing shell. If the actual bearing inner and outer is ok then probably the case will be as well, so long as the bearing outer has not "spun" in the case that is, you need to be sure as you dont know what the little animal has been through in previous lives.

Kt
Emu Plains,Australia.