You know what I ended up doing is something a lot like what you suggested. I have a spare Logitech rumblepad, and I am using one of the analog sticks on it for the rudder now. It is working out pretty good. I appreciate that the game allows for multiple USB controllers at the same time, and such fine control over the calibration and sensitivity through the advanced options. Very few flight combat simulations offer near this level of logical controller adjustment.
Perhaps down the road I will invest in the CH peddles. But for now, I think what I am doing, basically pretty much like you suggested money, is working exemplary.
What I would find interesting is the results of a survey, of the best AH2 sticks, on what their controller arrangement is, including rudder.
Thank you for the suggestions everyone that responded.