The group I work with only posts on MySpleen and I have to honor that rule. The goal is not a wide release but to get it out to fans who really care about preserving what these movies looked and sounded like in the theater. The vast majority of people will be happy with the digitally scrubbed, revised, re-colored and remixed blu-ray version of Raiders.
That said, I am guessing it has been posted elsewhere. It might be helpful to look for Raiders.of.the.Lost.Ark.1981.35mm.LPP.1080p.Dolby.Stereo. Even a whiny, entitled millennial can manage that 😉