I bought a guitar from Japan last month. It wasn't high end though, but the same idea applies (46,000JPY). I paid ~200$ for shipping + the 13% tax + 5% duty fee upon receiving it. NGD post coming shortly
The seller had to apply for a CITES re-export permit. It took 3 weeks to get it. I think they might have messed up something with the form because Japanese customs send the guitar back to the shop on the first shipping attempt. Luckily, it was quickly rectified and I received my guitar 4 days later.
On a related note ~ I found that particular on eBay at first, however there are a lot of sellers of Japanese guitars that post instruments from their local stores with a markup. I used Google Image search with the eBay pictures to find the actual shop that carried the guitar (Far East Guitars) where it was 250$ CAD cheaper.