A free market does require courts to enforce contracts, and it also requires laws against fraud and coercion.
Free markets and anarcho-capitalism are not the same thing at all.
Free markets could handle the issue of currency just fine. It’s government requiring payment of taxes in a specific currency which has locked us into using the US dollar, but it doesn’t need to be that way.
Markets do not at all need governments to coin money or to regulate the price thereof. I believe that, left to its own devices, a free market would choose silver and gold as superior forms of money.
They would definitely not choose a currency which is constantly debased and which could be created in endless amounts at a keystroke by a party accountable to no one for its actions.
That's been said before on the FR and it's so extreme it usually ends the chat.
Thing is that we're now talking stuff that ether requires amending the U.S. Constitution or maybe that anarchy you just said you don't want. I mean, you're saying you don't like what everyone else has wanted for centuries and you're not saying what you do want. This makes your statement useless as it is.