Welcome to the group and don't be shy about being new! Most of us were not born with an RV in the driveway!
There are some truly great sites provided by Winnebago to get the new folks started and let the old folks renew what they forgot!
for your questions and likely tons of other things you may need, one of the great sites is an interactive parts catalog. Not only for ordering but just to find what and where things might be found!
https://catalog3d.winnebagoind.com/menu/Parts.htm
It takes a bit to learn to "drive " the program but take it slow and there is a ton to learn!
Click these snips to get better view of what's available!
Zooom for more detail?
Where does LP go and how does it from the tank to the stove?
Good luck and let us know when you find new things! As a new RV owner, one of the bigger things is knowing about the batteries. Normally we might expect the onboard charger (converter?) to charge the coach batteries but NOT the chassis (start?) battery. Don't ignore that and let it go down while stored as that can kill a battery!
Look it over carefully before assuming how the charging and batteries work as it is a common slap in the face for new folks!
Somebody "may" have added something to take care of that but often not!