Federalization would cost far more than that. First there is the crash testing. You'd need 1 spare for the successful crash test and 1 spare for each unsuccessful test. Then there are the engineering modifications required to make it pass. Got airbags? No, you need to engineer those in. Seatbelt interlocks? Park interlock? DOT lights? The roof looks very weak. Next, that "Mercedes derived" engine isn't US spec even when MB makes it. Figure $40K just for that step. It goes on and on.