Add the new items as much as possible in a balanced manner.
i.e. air conditioner 1 on one leg, the other on the other leg.
Monitor voltage. Campgrounds are endemic for low voltage. I shut down at 107 or add my autoformer to boost voltage.
It is good to check polarity and voltage under load before plugging in your RV.
The best of the add on energy management devices may be the Hughes PWD50-EPO-H Power Watchdog Smart Bluetooth Surge Protector Plus EPO with Auto Shutoff - 50 Amp Hardwire Version. The one thing I do not like is the cut out voltage which is at 104--to low for my comfort zone.
https://hughesautoformers.com/wp-content/uploads/2019/02/PWD-EPO-H-instructions.pdf