Yes, I agree. Changing shutter is not an option. The Cinefade has been on the market for a year now, so there are certainly more than two units available in LA by itself now.
Total weight of the VariND is 690g. The wireless receiver unit is built into the cforce lens motor, so won't add extra weight. In my experience Steadicam Operators haven't complained about the extra weight on the front when balancing.