Add second air conditioner to 30 amp RV

I added one to my fs3000 ww, it was already wired but there was no space in the panel for an additional breaker, so I added a small circuit breaker box with 10g pigtail, it was also wired for another outlet next to my 30A plug so I added one for use with the genny, I use a 50a ext cable plugged into a splitter that gives me a 30A rv plug and a 20 amp regular plug, it works perfect and I can still use my 30A cord if there is no 50A available. I cut my long 30A cord and made an ext cord out of it, the 50a ext cord goes right up to the trailer then splits at that point. one last point, I had to replace my existing ac as well so I bought 2 of the Dometic Brisk Air II High Efficiency ac's which only pull 11.4 amps and can be used with a 15a breaker. you can easily run 2 of a 4k genny.