Update 29/11: Both available again
Update 13/04: Set with repro instructions sold, set without repro instructions still available ($280)
I've got 2x Capcom converter lots for sale - each includes power cable, RCA cable for audio, VGA cable and USB. This is everything you need to get a Naomi into a JAMMA cab. These are pretty hungry on the +5v lines so if your PSU struggles with the amperage it's something to bear in mind (FWIW I'm running a SUN PSU in my cab and it doesn't struggle normally, but it does have some trouble these days maintaining a flat +5v as it's in need of a recapping 😛). I've got a set of repro instructions for one of them as well (see pictures below).
Tested on my Naomi 2 netbooting MvC2 into JAMMA on my Astro. They've been set to 2-player mode and I can confirm the kick harness is working great during testing. Volume pot's set around the middle so you can tweak to suit your cab.
Looking for $280 each - drop me a message if you're keen and let me know if you'd like the one with the repro instructions (first in best dressed). Happy to post interstate, Adelaide locals can pickup if they wish.