I would seal the floor with polyurethane ,several coats, and let it dry good.This will prevent any urine leakage from rotting the wood.Then cover with rubber mats and use a product called Barn Dri(used by dairy farmers).It cuts way down on urine smell.Then I use wood pellets in the pee spots and shavings.Nice sweet smelling barn,less bedding used and definitely less work and manure removal.Have fun in your new barn.Let us see some photos of your barn and the new occupants.