As most of the trading on the RI marketplace is done by bots and algos, doing it manually will never give you good data, nor can you easily sell the RIs you buy. You need to consider market depth and liquidity, but you only have good access to that data when you have a lot of different customers already under management.

So instead of figuring out the CLI yourself, use a discount automation tool (like hykell.com) for it. You free up your time and get more savings compared to doing it yourself.