definitely feel your pain, brian, about the whole catch-22 situation of not being able to get funding b/c you haven't finished a doc yet yourself. but as someone who is only perhaps half a step ahead of you in the process, i think it's best if you approach "Makers" mainly as a place to hone your skills and even make your mistakes, and not so much as a way to have a finished piece that you can then use to get funding for other films.
because if "Makers" is not a standout film, it may not get you much further down the funding line. it will allow you to apply for funds, but you won't get them b/c of the stiff competition. what will really help is to get yourself a producer or Exec Producer on board who will give you (and your future project) the legitimacy it deserves.
i'm not saying that you 100% can't get funding yourself; it's just that it is extremely unlikely, given your subject. so go find some films that you like with similar themes and see who produced those -- then contact them with some good footage and a one-page treatment. best of luck!