Where to sell fixtures from a rehab

[Constance Vidos]

Hi!  New to the writing a question scene. Any help is appreciated! I normally rehab single family. Right now I'm working on renovating hallway areas of an 8 story condo building and we will be removing (or creating) surplus materials - 8" stained/unpainted egg-and-dart crown molding, chair rails, and more than 200 light fixtures, - all in good condition. Trying to find folks to sell them to - surplus dealers or the like. Second avenue is, of course, donate for tax write off. We are in the Washington, DC area. any ideas?