Welcome to the group!
One thing that I have found about the Winnebago line is that the info tends to be much easier to get!
New to us RV are always a bit of mystery, so I like to point out some of the online info. Not that we can't eventually find it if we keep looking but it goes much quicker if we know what and where to look!
They have changed what they post after the 2010 year models, so it gets into some "different" search methods at times to get down to the real good stuff.
Before 2010, they gave us more line drawings with a PDF style list of parts but after 2010, they dropped in a really great interactive setup where we can really drill down to things that we might have to go look before.
But don't give up if you need the info as there are lots of things that Winnebago carries over from year to year, so that may let you find what you want for your RV by looking at one close like the 2011 model?? It may be worth a shot, if you need to know something like where and how they set the tanks in and connected them.
Just finding the thing and knowing what to call it can help understand any problems that might come around.
You've been at this long enough to know what I mean, I'm sure!
But whiloe the 2009 doesn't have the specific parts info in the best way, it does get much more complete wiring info:
And then plumbing also has a seperate section of it's own :
All that info may not help at the moment, if you don't have troubles, but it might keep you entertained on a cold winter night?
Enjoy the trek!