See, all of this is why Elan is the perfect solution. All of the configuration resides on the processor and the client has control of who can and can't access their system. Then, in a few years when their processor dies (all brands die at times) and that model is no longer available and the new processors use a different OS, you get to charge for full rebuilding the configuration and blame it on the manufacturer!
And now I'll wait for the phone calls...
Civil War reenactment is LARPing for people with no imagination.