Sorry to have to walk through this step by step, but....

Any idea on a pay-for support basis how this would go down? (cost?)

What I'm thinking about having the customer pay for is a "ready to go hard drive with new 4.3 install, new key (from teleco) and file structure copied from currently running drive.

They are fully AA and to be down for more than a few hours would be a problem.

Thanks for the help!