Zoning should work great.
Find a good Arzel installer. Look at more than 2 zones. It is easy to do with Arzel and with a good heat load and some time looking at living habits you may find 4, 5, 6 or more zones may be very practical.
It takes good duct design, good room by room heat load.
You can be very comfortable in every part of your home and save money on energy cost.