It's more like $2500~ish for the game only actually.
So what you'll need is of course a Naomi board and the MBAA ROM, but you'll might need some extra stuff depending on what you're gonna play on.
- 1st possibility, you have a JVS cab and you're good to go.
- 2nd possibility, you have a jamma cab, you'll need a jvs to jamma converter, in this case I'll recommend a sega v2 or a capcom one (the second will need a little extra work with the kick harness to connect buttons 4 and 5).
- last possibility, you want to play on TV via supergun, you can save some bucks by using a sega v1 jvs to jamma converter, you can get the power needed for the naomi from your supergun with a little work, i find this setup to be the more convenient (less cables) outside of a cabinet, that's what i use actually when i'm not at home on my cab. Here's a tutorial on how to connect it to a naomi, it's in french but you can get what to do from the pictures i think (i can help if that's a problem), just do the same from the supergun power supply.
Now where to get the game, I'll say fujita communications (
http://www.fujitacommunications.com ) or riverservice (
http://www.rs2006.co.jp/index_e.html ), actually i was thinking of getting AA from riverservice but well the euro nosedive is making me thinking twice about it