Hi Redviking, welcome. Sorry you are struggling. Unfortunately, they just don't make a manual like a car that is like, here is what you bought and how everything works. I've attached the generic motorhome manual from Gulf Stream from 1998. Each individual component should have its own owners manual that you may be able to find online, like the generator, the furnace, the water heater, the a/c, the stove, the fridge, etc. You need to find the make and model numbers for each and then search for the manuals.
Watch these helpful videos on RV electricity. They are a good start to understanding.
https://youtu.be/7DpIzugALqc?si=j5fhGDiKPiZoazr3 https://youtu.be/WFPcV9_1frE?si=-Fo51dYVfySFUOzu YouTube can be your best source of knowledge!
It would help greatly to know the model name and number of your motorhome. "Limited Edition" is very generic. This may be on a sticker on the wall inside of a cabinet or on the outside by the entry door.
Does the motorhome start and drive? Do you move it often? Often the generator is ran from a fuel line that is inserted into the main vehicle fuel tank. It should be situated so that it will not draw from the tank once it reaches about 1/4 of a tank. This is so the generator cannot run the vehicle fuel tank empty. This is to leave some fuel to start and run the vehicle for a ways. A generator not starting could be that it is not getting fuel. Make sure to fill the vehicle tank to ensure that it is. If the vehicle has been sitting, old, stale or fuel with water and contaminates mixed in can also prevent a generator from starting. Low oil level can also prevent a generator from starting. Check, or better yet change the generator oil, set the oil level properly with the dipstick, then see if it will run.
How often are you plugged into shore? What type of receptacle are you plugged into? The 30amp cord from the motorhome straight into the wall, or are you using an adapter to plug into a regular 15amp outlet? What works when you are not plugged in?
If you watch the first video, you should understand that if your outlets aren't working then a few things need to be known. They won't work unless you are plugged into sufficient shore power, or unless the generator is running, or an inverter and batteries are working sufficiently. If yes to one those things, then reset the circuit breakers, reset any GFCI outlets and retest.
Knowing the model of your motorhome will help understand the battery in the step issue. House batteries are often kept under the steps. Where are your current house batteries stored? How many batteries do you have?
Best of luck.