All the better sticks like the warthog do NOT have the twisty option. As they are in the business to make money it just make sense that they try to sell you a second controller instead of combining them into one unit.
Openface, freetrack and face track all work. I did build the free track years ago using an old logitech camera.
This is the print I drew up for the one I made, and yes it was attached to the side of my head, but I used a ballcap, not a Rambo head band. I had a whole webpage put together on how to I did it but this is all I have left. Dadtallica tried "SmoothTrax" and wrote about his journey
here So yes a lot of the face tracking options work here in AH. Other games? dont know, dont care.
Pedals, well there are still a number of options out there. Even the "cheap" ones are like $150. Will they last? Maybe not as long as the $300-$500 range ones, but they may last as long as your interested in flight games. I am still using an old pair of CH Products pedals and they are still getting the job done.