I'm working on a squirt mod and those rivets are not a big problem to get out. Just drill them out using a 2 and 3 mm drill. The problem starts when putting the thing back together. I had some great help from Kent (Richard) and the other guys over here, and at the moment I haven't got the time to work on my little project
But if there are questions of taking a squirt apart I'm happy to try to answer them. I took two apart, and by now I know what not to do
My biggest tip goes for most things in life I guess, so also for taking a MT apart; think before you do
Trust me, stupid as it sounds, that is a good tip
And to be honest I wish that I would listen beter to my own advice