Trying to stretch the boundries of a gopigo here. Making something work will take some serious time so that's why I guess @graykevinb doesn't advise to do it.
Research tells me that steppermotors and a great gyrosensor will make a huge difference. Untill now Dexter Industries is the first company to have made a balancebot kit so I''ll probably try that out first to get some more experience before building a custom setup. Wished they focused on one RPI addon board to rule them all ^^
Thanks for the advice guys!