That refers to a complete change from SW to ST. Not like your going to spend 10k or there abouts just to do this every fall. Add to the fact that Safety Devices is in Bankruptcy you'll be very lucky indeed to even get the parts needed to do it.
Perhaps you didn't see the final remarks section:
"Final Remarks: The reverse direction of this project, as in SW to ST is just as difficult. Thus I recommend taking TONS of pictures like I did, and bag and mark each and every bolt. This made my ST to SW conversion pretty easy. When I went back the other direction I had very few problems. Each direction, SW to ST and ST to SW took about 2.5 full 8am to 8pm days, allowing for meals and sleep. It is a long project."
again, maybe tedious as written, however, it can be accomplished.
Jaime