HI Yufan. Did you find a rig? I do have a complete steadicam kit that is very versatile and professional. It was formerly Stephen Campenelli's. He used it on many Clint Eastwood movies. It's a MK-V 2" carbon fibre post with a Pro gimbal and Betz top stage. It also has the amazing Alien Revolution. The monitor is the Transvideo 6" cine with gyro level. It has the cam-jam monitor mount. The arm is a very nice GPI Pro arm with 8 canisters. This can carry everything from a mini to a 3D film rig. Walter Klassen back mount vest.