If there is mold inside the walls then you are breathing it.
Check out a thread called "Total Rebuild". Lot of info there on rebuilding that might help you. There are numerous threads here on doing this kind of project. If you decide to tackle this wear a respirator or mask of some sort when you do the teardown.
Retired January 4th, 2018 Lynne & Jerry RVM 105
04 WBGO Itasca Sunova (Miss May) Blue Ox Tow Bar
15 Equinox (Noxi) 18 RAD Mini e-bike, 04 Tracker