Human Character Rigging in Maya

I'm seeking a professional rigger experienced with Maya to rig a human character for complex movements such as dancing and acrobatics.

The rig will need to support:
- Basic movements (walking, running)
- Complex movements (dancing, acrobatics)
- Facial expressions and lip-syncing

Specific control systems required:
- FK/IK switch
- Stretchy limbs
- Spline IK for the spine

Please note that I have attempted to follow tutorials and rig the character myself, but was unsuccessful. Your expertise is greatly needed.