Erik Malund, may I ask you how many bread boarded microcontroller systems have you assembled? My experience with quite a few bread boarded systems (I put together) is that they are quite robust, if assembled properly. As for the parasitic capacitances and inductances you mention, are you aware that most of the high speed stuff in modern microcontrollers occurs inside the microcontroller chip itself?

If you can’t do it, it doesn’t mean it can’t be done!