Hello, I have been in contact with several different craftsmen and received different quotes regarding a wall that needs to be demolished (moved). Any help is gratefully received.
The red wall probably contains support beams for the rafters. Probably, these need to be reinforced in some way for the wall to be removed. More information about the rafters is needed to be sure about anything. The drawing is a bit unclear on that point. If you can measure the rafters, that would help. Information about the snow zone would be appreciated as well.
Looking at your drawings, it seems there have never been any support legs. This is supported by the fact that the high legs can handle the maximum snow load without support legs. I think you can make the change you have in mind.
I now see that I've mixed things up a bit. The image where I wrote the measurements on the collar beam and support leg is from a proposed plan for changes that never happened. It is only the floor plans in the two bottom images that are from the original drawing.
My house and the neighbor's house were built around the same time by the same family. I've heard that there was a shoemaking business in one of the houses. What makes you think it was a shoemaker's shop right here? The workshop?