Converse in Okinawa

For reference, I wear a size 11.5. I've been on the hunt for a few new pairs of low-top converse.

The ABC-Mart has a few pairs in a vibrant purple, and an equally vibrant blue. Problem is, none of the stores carry anything in my size, nor can I order them online because the ABC-Mart website does not accept US cards, and Converse does not ship to overseas Military post offices.

Looking at a few US retailers, they don't have bright blue or purple in stock, just Navy Blue or a Lilac color. It would also take 4+ weeks to get here.

Can anyone think of any workarounds?