Well. The problem of decentralized exchanges like etherdelta and forkdelta (the offer is on both exchanges) is lack of liquidity.
A second problem with centralized exchanges is daily withdrawal limits. With such large amounts for current market prices, this a stopper.

But for those interested for performing a triangular cross exchange arbitrage with smaller amounts, just check my orders above 100 Ethereum equivalent: https://etherdelta.com/#0x3137619705b5fc22a3048989f983905e456b59ab-ETH https://etherdelta.com/#MCAP-ETH and https://etherdelta.com/#BQ-ETH

Here are the exchanges with more volume https://coinmarketcap.com/currencies/mcap/#markets https://coinmarketcap.com/currencies/everus/#markets https://coinmarketcap.com/currencies/bitqy/#markets.