I have collected almost all of the original and classical material pertaining to Greyhawk. I have thousands of minis as well. I have the LG printed 'magazines', too. I just don't have the vast majority of the LG modules.
Sorry I have been away for so long folks. Many life changes. But I am back and hopefully can help. I have collected a bunch of different LG mods, Inter-actives, and adaptive adventures. PM me or post here and I will see how much I can help.
I'd like to get access to the old Living Greyhawk mods. I remember how much I loved playing them and want to try converting them to 5e for the younger generation in my gaming groups I help out at. I've PMed some people here but if others have them, please let me know.