In one aspect, the invention provides a coating process system including a continuous conveyor, a first end defining a loading station for loading work pieces to the conveyor, and a second end defining an unloading station for unloading work pieces from the conveyor. A series of workstations is configured to render coated work pieces and arranged at a first level to extend between the first and second ends. A cure oven is arranged at a second level above the first level, the conveyor making a plurality of runs between the first and second ends at different sub-levels within the second level. A first post-oven run of the conveyor extends from an outlet of the cure oven to the unloading station. A second post-oven run of the conveyor extends from the unloading station to the loading station.