I would have thought the demand for the English version would be higher in America, and that the shipping from FunPub would offset the higher price of the FunPub version. But BBTS ended up charging $55 more than FunPub's price, for the Japanese version.
Ehobby version - about US$157 (13,900yen)
FunPub version - US$195
BBTS (Ehobby) - US$250 (that mark-up includes air-shipping from Japan though)

After a couple more emails, they've told me that they are pretty sure that they aren't getting any of the English version, because they haven't received a solicitation for it from FunPub yet. (pre-orders were 3 months ago, and I guess FunPub didn't see the need to beg BBTS to buy some)