Hal Jordan

Hi there! I'm kinda new using Scrap.tf, so I was wondering, how do I know if an item is Overstocked? I'm planning on buying a Professional Rocket Launcher Kit to sell it and get some keys, the sheen is Deadly Daffodil with Cerebral Discharge and I don't see a Kit with the same properties on the Scrap.tf inventory. Does this mean I can sell it with no problem and they can accept it right now? Thanks for reading and I would appreciate an answer. See ya!