In your neighboring state, Colorado, the MVCC got a bill passed into law where we still have to register a MV, pay for the license plates but we don't have to display them outside the vehicle. We can display them outside the vehicle but we don't have to.
If we decide to not display the license plates on the outside of the vehicle we have to have the license plates and registration inside the vehicle at all times and have to show them to Law enforcement officers upon request.
We can run any kind of license plate we were running before the law was passed. They just don't have to be on the outside of the vehicle anymore.
And now we can register equipment using bumper numbers, hood numbers and other painted on identification numbers. This really helps with trailers and with the whole question over the 13 or 16 or 92 digit vehicle identification number issue.
I really like how the bill was worded, what it does and the problems that it solved for us in the MV hobby here in CO.
I would recomend you do this kind of thing if you have an opportunity to do so.