Hi,
The easiest way to get some money is to use, as you said, the M2Bob. This program also includes a fishingbot. So always create 3 accounts and start to use the normal functions to get your characters on level 30. After that just start the fishingbot and use 2750-2900ms for the fish- and 4000ms for the botdelay. Btw, always use the bot for 3-4 hours. After this time you can take a break of 1-2 hours and you can continue to use the bot.
There are also some guides concerning your question but as far as I know they're all written in german.