We may be able to return to the Calvin Coolidge era...
Revolutionary change happens in a big leap followed by incremental progress in degrees.
Our government in the US has been acting extra constitutionally at least since the days of Franklin D. Roosevelt. Although we must restore it to the basic fundamental principles of the US Constitution designed by the Founding Fathers, I think it is unrealistic to expect it to go back the original form in one sweeping second revolution. What we can strive for first is a return to the last President who held fundamental beliefs of small and laissez-faire government, Calvin Coolidge.
There are several historical changes that have caused me to draw this conclusion. Primarily they are the Civil War, the 16th and 17th Amendments ratified in 1913 and the extraordinary powers unlawfully exercised by FDR that have been institutionalized by every President since. In my way of thinking the chances to roll back the changes those events brought completely in one fell swoop is highly unlikely.
Another reason I think this is not possible is the changes that have occurred since the Industrial Revolution in communication, science and technology. We are currently in an era of huge disruptive change that also creates a different social, economic and political environment. When the Founding Fathers envisioned and created the US Constitution they were basing it on an agrarian society that is long gone. Additionally, as appalling I think both the 16th and 17th Amendments are repealing them is probably unlikely. The federal income tax is here to stay as is the direct election of Senators for the time being.
We are headed for some sort of economic, political and social crash that is on a par with the Civil War and the changes that it brought. How it will play out is uncertain, in spite of the pronunciations of economic doomsayers, survivalists, preppers, radicals, socialist revolutionaries, et al. No one really knows and can predict the course of future history. More likely the crash will serve as a wake up call and result in a restructuring of our country rather than an all out collapse or another civil war.
Therefore I think the focus should be to return to the most recent modern era of the 1920s that small and laissez-faire government existed, accepting that certain elements of the Constitution will remain unchanged for the moment. This era did not cause the stock market crash of 1929 and subsequently the Great Depression, in actuality the period prior to Coolidge started government intervention and regulated monopolies did. Once we've re-established small government, then it will be time to repeal onerous constitutional amendments and extra constitutional laws and court decisions. Change and progress usually succeeds in incremental steps rather than a total revolutionary repeal that an under educated and unprepared people do not have the ability to cope with.