Shed, approximately 3.5 tatami mats (Kyoma size), pickup only

Assembled about 20 years ago when I purchased my home and used in a storage shed.
I don't know the specifics, but I will answer questions to the best of my knowledge.
I think it would be best to disassemble it for transport.
I am willing to help to some extent.
Located in Naka-ku, Sakai City.
External dimensions: 1.8m x 3.6m