That's the way I would go. I had a Voltage Toy Hauler and the 2 factory a/c's would not run at the same time on 30 amps probably because one was 15,000 and the other was 13,500. Keep in mind you probably won't be able to run your HWH and Microwave along with them. I can't run them while my Factory 15,000 is running, it will pop the breaker.
Yeah, with two 11,000 Power Savers, the Energy Management system should drop off one A/C when microwave is turned on. And since an 11,000 Power Saver only pulls around 10 Amps under normal conditions, running a microwave at same time should be OK without tripping main 30A breaker.
The water heater I would run on propane when 2 A/Cs are needed.