I agree. The RENE is my "go-to" for Ruger info!There's a few publications but all are very basic and none even come close to showing each variation. The ones I've flipped through seem to have been written for the most basic readers and contain only the most basic information.
Reason...there's simply FAR too many variations. However... The Red Eagle News Exchange puts out the encyclopedia of everything Ruger and does have such a full listing. No pictures but the additional details FAR make up for any of that.