Unclutter (a.k.a. redesign) the 'Access control' tab

I tried looking for any similar issues before posting this one, but then again I might have not used the right search terms. So, I apologize in advance if this turns to be a duplicate...

I think that the way the 'Access control' tab is laid out is kinda cluttered (same user roll appears at least 6 times, 3 for any content + 3 for own content). I thought it'd be better to show than tell, so here is what we see now:

View any content:        Edit any content:        Delete any content:
[ ] anonymous user       [ ] anonymous user       [ ] anonymous user
[ ] authenticated user   [ ] authenticated user   [ ] authenticated user
[ ] site owner           [ ] site owner           [ ] site owner

View own content:        Edit own content:        Delete own content:
[ ] anonymous user       [ ] anonymous user       [ ] anonymous user
[ ] authenticated user   [ ] authenticated user   [ ] authenticated user
[ ] site owner           [ ] site owner           [ ] site owner

... here's how I think it should be (stage 1):

                     View any content:   Edit any content:   Delete any content:
anonymous user              [ ]                 [ ]                   [ ]
authenticated user          [ ]                 [ ]                   [ ]
site owner                  [ ]                 [ ]                   [ ]

                     View own content:   Edit own content:   Delete own content:
anonymous user              [ ]                 [ ]                   [ ]
authenticated user          [ ]                 [ ]                   [ ]
site owner                  [ ]                 [ ]                   [ ]

... and how it should finally get (stage 2):

                     Any [content-type-name-here] access
=====================================================================
                     View:   Edit:   Delete:   Create:   Full access:
anonymous user        [ ]     [ ]      [ ]       [ ]         [ ]
authenticated user    [ ]     [ ]      [ ]       [ ]         [ ]
site owner            [ ]     [ ]      [ ]       [ ]         [ ]

                     Own [content-type-name-here] access
=====================================================================
                     View:   Edit:   Delete:   Create:   Full access:
anonymous user        [ ]     [ ]      [ ]       [ ]         [ ]
authenticated user    [ ]     [ ]      [ ]       [ ]         [ ]
site owner            [ ]     [ ]      [ ]       [ ]         [ ]

The 'Create' column in the last mockup is for when this gets implemented: #789754: Add 'create' Content Access operations support → and the 'Full access' needs its own feature request ;)

I would like to know what people think. Thanx in advance for considering this.