I'm interested. I see opportunities to arb with Bet365 all the time with live betting. However, we'd have to come up with something better here than 5% of every winning wager.
Feel free to do your offer via pm or post it here. I find that 5% is fair, so for example, if you bet 1 BTC and odds were 1.10, you'll win 1.10-0.005 BTC and I'll win 0.005 btc