Welcome to IRV2! We're sure glad you joined the gang!
You may not be able to power everything at once but you can do a rough calculation of the current draw on each appliance and just power what you need at the time.
Good luck, happy trails, and God bless!
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD