Don't worry about Bumpy, he's just being funny. There are locks that will fit your storage doors and available from a really good locksmith. They are used in hospitals, Dr's offices, pharmacies and the like. They sell in the $20 to $40 range. There are a lot of locks available from an RV store, the cheapest are about $6.00.
As for your entry door, I have a door lock that locks the paddle style opener and a dead bolt. My dead bolt was a CHEAP copy of the Kwikset locks. I changed it out to match my entry door dead bolt. Mine was about $60.00. I rekeyed it to match my S&B lock.
There are a lot more locks available for you rig and a real, good, professional locksmith can guide you if you feel the need.
