in the past few years ago it was really a good option to stick with arb betting (we called it surebetting)

but there are a few problems here

first you need bookmakers where you can handle such big amounts, and they are safe there
other thing is, to find the gab in for examples - handicap and + handicap

cause the solid bookies are quite sharp when it comes to lines and odds

if you find such a game like OP mentioned, than its ok and you can try it, but as i said, you need trustfull bookie here to handle such amounts. and you have to be fast before odds/line changes (means you should use markets with much liquidity to handle such amounts and have lines which still exists after a 10K bet)