Hello. I want to add a shed to my layout where the steam locos and rolling stock get washed. I've seen one that has rollers, but don't think it would work for steam locos. Will I have to kit-bash, for example, a Metcalfe engine shed? It needs to be more open than a normal shed, so if I remove the panels that have the windows, leaving just the supports, leave both ends open and have roof ventilators instead of chimneys. I'll have to rig up some sort of spraying system from dowelling or thin straws and have a few workers with hoses. Probably ground drains as well. Input please.