You could wait but I managed to get my game rolled back using SteamRE's depotdownloader 2.4.3 hotfix (github) and the manifest numbers I listed above. Each of those manifests equals a part of the game. You go offline in steam (or it will just overwrite your hard work) download the manifests with the depot downloader, then make a new folder someplace...you pull out all the game files and place in that folder. You then create another new folder anywhere not in the install directory for RDR2, move your old game files (located in the install directory) to that folder. You then put all of your new game files (downloaded from depotdownloader) into the install directory folder which should now be empty. Then install all of your mods. I'm playing the previous version of RDR2 in offline mode in steam while awaiting a scripthook update for the latest version. A pain in the ass to be sure, but at least I can pick up where I left off and not have to wait.