Your experiences with Japanese Domestic Market (JDM) watch vendors: Miyaran vs Jihousha for shipments to North America?

I am contemplating buying a JDM watch that is available for similar landed in Canada prices at three JDM watch vendors: IPPO, Miyaran and Jihousha.

I had a disappointing experience of IPPO being unclear (in their own favour) on their website about another watch and am leaning toward using one of the other two, Miyaran or Jihousha. This will be my first experience using Chrono24.

Ideally, I would like to pick a vendor that is fast, communicates well and makes an effort to minimize my non shipping costs, for example by including a short statement of Japanese origin to avoid duties (Japan and Canada have a free trade agreement), or using Japan Post/EMS to reduce broker costs, as one eBay vendor agreed to do on a previous purchase.

I do not need the watch immediately, but would hope I can find a vendor that is reliable and gets the process going promptly. I realize that there will likely be fees for brokers and possibly Canadian duties, but I am trying to minimize them.

Please share your experiences with these three companies, whether good, bad or indifferent.

Thanks in advance!