i got an idea for you, why don't you make a mixing contest ? so you make available for download a multitrack session of one of your songs (an old one or a new one) and people can download it and mix it. Then you listen to the submissions, the mix you like the most and that person can become your official mixer ! boom, you just got your first collaborator ! i'm sure there's plenty of talented people that would be thrilled to do that for you (myself included) !
i can't do that, but i do have some questions if you want to get in touch