I've been scouring the internet to see what is for sale and how the prices are. Thing is, the complete games are almost always cheaper than buying parts because of space and logistics issues. So a $400 OR2 doesn't necessarily mean hard to find parts are a fraction of that price. I think several folks on here would pay $800 for an OR2, but not if it requires shipping across the world.There appear to actually be a few card readers on eBay currently. 2 from the seller I mentioned earlier who guts cabs and lists parts pretty high. He's got 2 readers for 125 each OBO, as-is, though they don't come with any wiring at all, and I'd be surprised if you're missing the card reader that you have the wiring going all the way up to the reader like would be needed for these 2:
http://www.ebay.com/itm/maximum-tun...012789?hash=item3d2bfd1ab5:g:d5MAAOSwImRYNTyY
http://www.ebay.com/itm/maximum-tun...011766?hash=item3d2bfd16b6:g:oVUAAOSwiONYNTv0
You'd probably be better off with this one that has some wiring up to a connector on it.
http://www.ebay.com/itm/MAXIMUM-TUN...424281?hash=item25c8122cd9:g:E~gAAOSw6BtVVS~1
Here are the pricey Chihiros I mentioned:
http://www.ebay.com/itm/sega-naomi-...770738?hash=item3ad30a4cb2:g:wKsAAOSw5cNYNTR-
http://www.ebay.com/itm/sega-naomi-...686772?hash=item3d2be8def4:g:CQQAAOSwB09YM~ZJ
Note that they don't come with AVIP cables, which are needed for booting, but you can pull it from your broken board if you end up buying one.
He has one AVIP cable listed separately:
http://www.ebay.com/itm/sega-naomi-...742954?hash=item3d2be9ba6a:g:VGIAAOSw5cNYNAUK
I honestly don't know what a decent fair price is a for a working Type 3 these days. They don't come up a lot from what I have seen recently, though I don't look that often anymore. I think if I saw one for under $400 buy-it-now and it was complete, I'd consider it... $300 or less and I'd probably pounce. I got screwed on my last purchase of a Type 3 that was BIN for $385+shipping because it ended up missing a network board that I had to pay extra for from another source, putting it at over $450 all said and done, and I wouldn't have paid that out right for a complete working unit.
Edit: And to put this all into a pricing perspective: I paid $350 for my OR2SP cab that needed a $15 stick of RAM and everything worked... so a complete cab and working Type 3 Chihiro for less than I paid for a complete Chihiro on its own. Trying to get parts is way less cost effective than buying a working full cab outright.
I have cables that are labeled for the card reader...it looks like they were just pulled by a previous operator. There were a few stacks of tokens from about five different arcade fun centers along with several sets of each of the cards. So I assume it had working readers in it and someone didn't want to fish out the wiring and just grabbed the readers. Is there a specific model number for these readers--or a compatibility list for other games that would've used them?