Nail Tatami Mats to Floor in Living Room

I have 12 tatami mats that I need fastened to the floor in my living room. The mats are 90 cm wide x 200 cm long (see attached pic). The room is approximately 3m x 15m. There is an existing carpet with wood flooring underneath that the mats must be fastened to, so the nails need to be long. You must have a nail gun, and tools for cutting long, straight edges since some of the mats need to be cut at the edges to fit the space. Images attached. First pic is of the room, and the second is of the carpet underneath the mats. The only time available for the job is Monday morning. I hope that is all right.