We decided not to add a ceiling. What we really need is more room to sleep. The best option for our small store is to add an upstairs. The upstairs will have a bedroom with an air conditioner for all of us to sleep while at the same time adding more room to the store downstairs.
We have carpenters coming to start work this week. They will remove the roof and use cinder blocks to build up one level. We also need to add a water pump because of the low water pressure.