You're welcome. Glad that you found your leak. As far as I know there isn't an assembly manual available. There are plumbing diagrams and wiring diagrams available at
Winnebago/Itasca resources in PDF form. The parts catalog is there also or for your unit directly to
2008 Itasca 30B parts catalogHope you have a great time in the Keys. I talked to my sister a couple of days ago and they were walking the beach outside of Naples in winter jackets.
On edit: Here's another post that I ran into today where several Winnie/Itasca owners talk about their rusted windshield frames.
More rusted windshield frames
