I will have this matting and these tatami mats and that is it. I already have the futon and the buckwheat pillows, and later I will acquire the kakebuton. There are also bamboo mats one could have.
I am nervous about these tatami mats, they are 75″ and my space would be 75″ exactly if it were not for the quarter rounds that make it slightly smaller. Yet I am convinced they are the answer.
Axé.
coldhearted scientist وداد 
I do not currently have the cash for the tatami and I have some doubts about it. But here is another place that has them in the size I want.
http://www.furniturestoresbayarea.com/tatami-bed/
And there is this.
http://www.foamorder.com/product_benches.html