I have just purchased a (used) Broncolor Impact 21 kit, with 3 units, 2 stands, barn doors, reflector, umbrella, IRI transmitter, bag, case, etc. I am only just getting into photography, and am wondering what this is worth. I can't seem to find it on ebay, etc....so I'm wondering what it is worth, and perhaps, where could I sell it? thanks so much for helping!!