AFAIK there are only variables for CPU, RAM, and Startup Disk. Those are the real detected info, but the About Keaton title, model name and graphics lines are static labels.for shame... ours actually is the real thing, so it'll adapt to any machine, making it exactly like the real thing.
Perhaps if someone wants to go into code a bit this could be solved, but I doubt it'll be an easy thing to do. For now, If I ever copy this install to another Mac I'll have to remember to change those lines.