One thing of note I only did the interior panels and gables NOT the interior of the exterior walls as this would prove VERY expensive. What we found was since the interior was so clean and modern looking, it made even the oldest and cracked end cap look fresh and fine.
It also helped that I replaced old rotten sections of the subfloor with Coosa, so the damp musty smell is no longer there.
I would do what is easiest and just clean the exterior walls with Spray Nine if I were you.
Oh and the new cabinets and tops I built also helped.
Per Mare, Per Terram and may all your campaigns be successful.
ďItís a recession when your neighbor loses his job; itís a depression when you lose your own.Ē "Harry S Truman"