Having substantial collection of guidebooks on the subject I can tell you that no one is going to write exact directions to any particular ruin or rock art that isn't already all over the internet (meaning with directions given on whatever website you find). If you want general information about the area, the recent Falcon Press publication, Utah's Bears Ears and Cedar Mesa is a decent look, which is to say it is pretty general. I'd say based on what you wrote above, you probably know as much (or maybe more) as that book, and pretty much all the others, are going to offer. There is this one guy who writes guidebooks (a series of them actually) that are insanely difficult to read through, has a lot of info per page, needs an index but doesn't have one, has reasonable maps but there's lots of route-finding still involved, and is featured in the documentry Gorging. His initials are MK and he loves spelling photos as fotos, and loves using metric. Also his hike times are really underestimated.....