Sounds like we were doing the same track only at different time periods. We also went with what we could afford at the time and learned to repair/fix/replace what was needed as a way to move up as time went by.
We started with a late '50's Aljo trailer in about 1967 or so and went through about all the RV as the kids go bigger and money came easier!
I found it was a way to have and use and RV but also make some money on it when we sold! We were always a bit amaxed ot how folks would sell RV so cheap because the cabinet doors would not stay closed!
One thing we found was the info and help from Winnebago was often much easier to get than other brands. Now that info is often online, so even better!
Have you found the Winnebago home site:
https://www.winnebago.com/
Under the "owners" tab and at top left there will be a ton of good info, down to things like wiring and plumbing diagrams and interactive parts lists to let you turn the RV all around and "look through walls" to find and ID things you may need to know.
Things like where are the drains? Looking at a drawing is lots easier than crawling!
If you want to know where things are under the dash, it sure beats taking the dash apart!
The parts catalog is a bit of learning curve which can take practice, so if you have questions of how to move it, shout out as it can be lots easier/quicker with a bit of explanation on some of the controls.
https://catalog3d.winnebagoind.com/menu/Parts.htm
Enjoy the trek!