Interested in ordering a 2017/2018 Cyclone 4113, but can I get a 7kW RV Generator?

I really don't understand why you offer (3) 15K AC units but only 2 can run at one time... Can i order with a 7kW RV Generator and/or 2nd power inlet option for those who want more AC's during the Hot Summers months here in Texas?

Thanks,
Brian