The last time I visited the flagship store in Harajuku, they told me there was no issue with selling me a "Japan Only" model and giving a tax free discount if I presented my passport. What they said they wouldn't do is ship it overseas to my home address. I'd have to manage that myself or through a third party.You will want to be buying from a dealer. Because if you try to go to the Fender flagship store in Tokyo / Shibuya they won’t sell one to you. Good place
To try out the basses, just won’t sell to a foreign buyer. I went to Ishibashi which has the full line and then some.
In the end I didn't make a purchase on that trip and since that was a couple years ago, things may have changed.