You may want to ask "Anthony" or "Andy" about it.
They are owners/staff of this American arcade called "TGA" (located in the state of Masachusetts).
What makes them different from other arcades in the continent is that they get their BM IIDX hardware stuff DIRECTLY from Konami. Usually, the stigma here is that you would pay higher in order to get the same stuff that you can get in the black market or thru second-hand suppliers.
If you want to get more accurate/precise data on how much it costs (brand new machine, upgrade kits, etc.), you may want to ask them.
You may also want to ask them on how they were able to get special access to Konami arcade merchandise, how much more they had to spend compared to black market prices and to ask them on how YOU can purchase stuff direct from Konami (if you plan to go legal and do it the HARD way but with less legal obstacles). A possible advantage is if you decide to fork out extra and go legal, they may actually give support since they would see you as a special overseas buyer. Heck, they might probably give you backdoor access to e-amusement as well (for 5-10x the Japan monthly fee

)
Anyways, if you need more info, you can find their usernames in this site or better yet, go to
www.tokyogamingaction.com
Hope that helps.