GeoSciGuy: Well, it looks like the general feeling is that the Horse Thief should abandon his hideout at least for a while.
I kept thinking that I would get out to check the cache and replace if needed but I simply have not had time. Therefore, I guess I have no choice but to archive this cache.
I think I held out this long because this was my first ever cache hide. Most of my others have either been muggled or otherwise vanished. I still have the Island of Misfit Toys but that is the only cache I have that is currently active. If I can ever find the time, I will either replace the Horsetief Hideout or place a new cache.