@Zangelbert Bingledack et alia
Have you thought about actually working towards building an exchange for single ledger fork arbitrage (Crypto Arbitrage
TM)?
The simplest model has no fiat on-ramps, just a way to trade between a coin and its fork. But this assures no liquidity for the forked coin and hence necessarily disadvantages it, which in turn makes fork arbitrage moot.
So a full-blown exchange is required. But as (in most cases) value of coins on one fork is expected to drop fast, the quickest way to get out will be to directly exchange for dominant coin, which may in turn be exchangeable for fiat elsewhere.
In other words, liquidity requirements are not exorbitant and arbitrage occurs as long as all coins are paired with some fiat denomination. Thus (a prototype for) such an exchange could conceivably be set up in some favorable jurisdiction without tremendous resources. KYC/AML procedures are necessary but risk of money laundering seems low.
No?