Keep my garage moisture free

After you insulate the building you need to install an air mover . $20.00 floor fans from home center will do in the short term . If you choose to install A/C , that will prevent condensation . gotta keep the air moving
My building is 720sqft, would two small box fans from the local home improvement store be enough? I would like A/C but anything greater than a window unit would be unlikely.