Is there software that implements John Siracusa's Spatial Finder concept? Grumbling about how Apple wrecked the Finder when switching to OS X has been going on since OS X was first released.

It's been ten years since John Siracusa outlined exactly how the Finder ought to behave.

With Mavericks, Apple stepped even farther from this Spatial Finder model, where it's apparently not even possible to have a double click/⌘↓ open a new window by default (it works in windows without toolbars, but the newly opened window will, by default, have a toolbar…).

My question is this: is there a third-party Finder replacement that behaves in the spatial way that Siracusa's ten-year-old manifesto calls for?

Note that it is possible to quit the program that Apple calls Finder.app.
Is there some other program I could launch in its place that would give me the behavior he describes, most notably the binding of one folder to one window that retains its state with regard to position, size, color, etc.?
This isn't a direct implementation of Siracusa's vision. It is, however, a Finder alternative that looks distinctly spatial in orientation, an the opposite of the file browser direction most other Finder alternatives (and the Finder itself) seem to be going:

Raskin for Mac seems to be the very spirit of the spatial Finder that Siracusa has been calling for. I just downloaded the free trial and am exploring it, but this might be exactly what I've been looking for.