1 Can someone help me with some input on using a basement that's under a old barn for setting up a 48×48×80 grow tent?

Please any ideas?

More info about the space is needed. Floor type, available power source, average temp and humidity of the room, also called lung room. And tell us what your plans are. Do you plan on using tents or are you going to wood frame separate veg and flower spaces. And, what is in the barn above the basement room? Are there tractors or trucks that leak on the floor over you grow area in the basement? Tell us everything you can for the best advise.