Viper,
Hello and welcome to AHII,you might want to take the suggestion from Coltomb and look around for a used X45,the throttle has a rocker switch that can be mapped to rudder and pretty easy to use.
You could also use the Ch throttle which has a hatswitch that could be mapped like the X45.I wish I knew more about how th RC box setup worked as that also sounds like another viable option for your needs.
I also had probs with the twist axis on my X52 but thats been the only problem I've ever had with it and it's around 5 years old.I'd stay away from the logitech stuff,as you know since you have 1 but for the most part even the cheaper saitek sticks seem to last alot longer than the logijunks do.
So if $$$ is a problem maybe an inexpensive saitek would do atleast until you find a suitable alternative.
Once you get setup and ready come see me in the TA some time and I'll gladly help with any problem you might be having.