The S800 + WooKong M + Zenmuse gimbal would be a perfect combination.....
IF you can life with the costs and the camera restrictions....The S800 is known for serious vibrations which doesn't matter when using the Zenmuse gimbal, but any other gimbal would give you just tons of headache. The crux is not only the gimbal itself, but you also need a gimbal controller (forget the built-in controller from the WooKong). With the Zenmuse the gimbal + gimbal controller is one unit, while with the Cinestar 2-Axis gimbal you also need an extra gimbal controller, and any aftermarket gimbal controller(Radian, Piclock, Hoverfly etc...) would simply not cope with the vibrations of the S800.....you could try to reduce vibrations by using different props, fine-balancing the props and reinforcing the arms of the S800...but you are taking the risk to invest some serious money just to find out it might work or not. The only advantage of the S800 is it's ability to disassemble it fore traveling and the fact that it's working perfectly in the mentioned combination (S800 + WooKong M + Zenmuse)...like it or not, but the Zenmuse is at the moment state of the art....but not very cheap
If you are looking for the possibility to dissasemble/fold the copter AND want to be more flexible with the brand and weight of your camera AND want the Cinestar 2-axis gimbal you should really have a closer look at the Droidworx product range:
http://droidworx.co.nz/
Top product, top service and widely avalible.....
Chris