Yes, you can get them all running. Put some Supco SPP-6 capacitors on each Unit. Also be sure to run the refer and water heater on gas only, you will be pulling 38-40 amps with all three going.
You may need to offset the temps in each zone, but the system is supposed to be smart enough to get them all fired up. When you see the hour glass on the thermostat, that is showing a 15 second delay (IIRC) from the time the fan starts until the compressor kicks on.
TV: 2015 F-350 DRW, CC, 4x4, with 14k GVWR package, 98 gallon TransferFlow Aux Tank, Timbren Shocks
TH: 2014 Voltage 3950, Sailun S637 all around