Nice find. The RWA was essentially the 2nd KQ collection with the first chapter of Phantasmagoria. I am not sure what was included for Phantasmagoria, but there was some documentation of the history, which included this timeline
. For the game documentation you can use the manual that came with the 2nd KQ collection. The third collection came with a PDF of the 2nd and Sierra had it available on its FTP for download. The FTP seems to have gone away when the official forums went down. I have most of the contents of the FTP for the classic games here. Here is a link to the manual
Remember, the SHP installer for the 2nd collection
should work for the RWA, with the exception Phantasmagoria. I have not been able to confirm this, but have heard that it does from people that have the Anthology. If you try it, let me know if it works for you.