A few months ago, I finally made my first purchase in TF2 and my backpack expanded accordingly. However, during my years as a F2P, I accumulated a large number of achievement items. Since I only had fifty slots and I cared most about having good weapons, I ended up deleting many achievement items (and the vast majority of random drops).
I've since found/traded for the few achievement weapons that I deleted, but I'm still missing three key items that I deleted and I'd like to have back: The Ghostly Gibus, Pyrovision Goggles, and the Headless Horseless Horseman's Haunted Scrap Metal, all of which I earned by getting the corresponding achievements. There's no way to earn an achievement twice (AFAIK), and these items are tied to the achievements themselves. So, is my Gibus forever lost, or is there some way I can find it again?