When we purchased our house our realtor told us he was almost positive it is a Sears kit home. I think I found our proof.
I think it is safe to say Mike and I live in style #3323, The Plymouth. Only our floorplan is opposite this one with the bedrooms on the left side of the house.
Apparently this design was available from Sears from 1934 to 1937. That means our house probably wasn't built in 1920(s) like we were told. I'm going to be looking further into this and see what I can find in the County records. And I think i'll buy a replica Sears catalog.