What business would buy and ship a large item (chair) from Japan to other countries? Please advise.

Hi,

I would like to buy an electric health chair in Japan and ship to USA and Thailand. The company has a website in Japanese and English languages. So, I emailed asking to purchase. They only ship inside Japan, no oversea shipping. I wonder if there are companies that would act as a middle man to buy and ship to customers outside of Japan for a fee. Please advise.