There are many threads here that discuss electrical power and what’s feasible with a battery powered system. Buying a ready-made power station such as a yeti is far more expensive than a DIY setup, and the DIY setup if done properly will be superior.
Running a microwave, espresso machine, and to a lesser extent a fridge will use a lot of power - bumps against what’s feasible with a battery system. Also, running a bunch of 110 volt stuff requires an inverter, which isn’t very efficient.
With the needs that you describe, rather than building a gigantic battery powered system it’s more efficient for you to use a gas powered generator. Get a hitch carrier for the back of your Suburban and mount a generator to it. Batteries can be used for lights, fans, and small device charging. A larger battery system can also run a small 12-volt fridge.
Making electricity isn’t cheap or easy in a vehicle, and most who’ve been at it a while have discovered that it’s far easier to use less of it than make a enough for household-type appliances.