When the Constitution was decided, most Americans owned their won farms and businesses;
Americans still own farms and businesses. Nothing's changed.
they were no big giant employers to collude and fix prices;
They can't. Such collusion and even monopolies are inherently unstable and will collapse on their own. All it takes is for some little start-up to come and and shoot their kneecaps off, or someone willing to make an extra buck by breaking from the collusion. Even OPEC learned that the hard way.
the wealthy were traders and import/export dealers.
No. The wealthy were anyone conducting capitalism. That is the only economic system that creates wealth.
It was an entirely different economy,
It is a lot smaller. There were less people. However, there were still city dwellers living in apartments and townhouses, there were still people living in houses and on farms and ranches, and there were still people trying to steal it.
Today, the economy has grown to include all manner of marvelous products...far beyond the wildest dreams of the folks living in the late 1700's.
and the majority were leery of Wall Street types and bankers,
There were no 'Wall Street types and bankers'. Banks were local. There was no Federal Reserve. There was no central bank.
I think we should return to that. Get rid of the Fed and it's fiat currency, and return to gold and silver based currency.
and didn't allow them to run rampant and suck the life out the real economy like they do today.
That's the Fed and fiat currency doing that, coupled with high taxes.