+0.5

Deloitte's is pretty much the top one. but id say for the first 6 months they could get away with using another accredited accountant/auditor, just so they can atleast start making a profit and not be tempted to eat into peoples deposits to pay wages.
(although i also think if they dont have enough finances upfront to cover costs, then being given customer funds is risky, so i see both sides of it)

and also have the exchanges put a reserve/security into the lloyds of london insurance elliptic vault as their collateral. (separate from customer funds which need to move freely instead of being locked in).

we dont need basement dwellers trying to look legit, yet have no credentials..

if its going to be done, atleast get it done honourably and right