seeker of roads: level of multiclases and of launcher for the elaboration of dowries.

I am building a mystical theory, and as such, my initial levels will alternate between cleric and magician. I do not want to miss the opportunity to be able to take with me wonderful objects of craftsmanship at the first opportunity I have (and possibly fight to retrain or delay in the elaboration).

The requirement is level 3er pitcher. Is it possible to take the feat on the 3rd level when none of the classes meets the requirements, but does it collectively? I know I asked in a previous question about stacking different levels of launcher levels as if they were skill points or BAB to cast spells, but this is different. This is a requirement for a feat that is not the same as casting a spell.