I do have yanfly's full plug-in library is there one that'll work for that?
I'm only loosely familiar with Yanfly's work, but I think the only one that would be helpful would be the doodads plugin. It's only for placing objects, though, it won't help with the autotiles. I'm fairly certain it works together with the TileD plugin though, which is free. It might be easier in MZ, with the mapping plugin Hudell's been working on, but I don't currently own MZ so I haven't tried it.