does any place in alaska offer this service
It's not Alaska, but we used Hytek Finishes in Washington a few years ago. Here is their contact info:
8127 South 216th Street
Kent, Washington 98032
Ned and Tim Manning, machinists up at UAF, set up their own anodizing system some time back. I am not sure how they did it, or the process involved. It sounds though as if it is something a person could do on his own if he has the space and incliination.
Tim still works up in the machine shop and could be contacted there.