Help needed quickly...making a hybrid JAMMA/MVS cab

elekTRONarcade

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Help needed quickly...making a hybrid JAMMA/MVS cab

Hey guys, this is one issue I need a quick assist on so I can get the right parts ordered, so any help is greatly appreciated. Basically, here's the scenario:

We're wanting to wire up our Neo MVS-4-25 cab to be a hybrid MVS and JAMMA cab. We've ordered a 6-in-1 JAMMA switcher, and the cab currently has an MVS harness and MV-4F 4-slot board. What would be the best way to wire this cab up, so that we can flip a switch and go from MVS to JAMMA and back? Here are the ideas I have, and I need to know which ones are possible, and of those, the most feasible, cost effective and sane:

A) Keep the existing MVS harness, and splice a JAMMA harness to it somehow. Use a two-throw switch on certain wires to switch between boards (CHEAPEST)

B) Replace the MVS harness with a JAMMA harness, wire up the 6-in-1, then use a MVS-to-JAMMA adapter and JAMMA extender cable from the MV-4F to one of the slots on the 6-in-1 (thus leaving me with only 5 empty JAMMA slots) (SEMI-EXPENSIVE)

C) Replace the MVS harness with a JAMMA harness, connect a 2-in-1 JAMMA extension cable to the harness (the 2-in-1 with the pushbutton selector, not the remote version), then use an MVS-to-JAMMA adapter (and possibly a JAMMA extension cable) to connect to the 2-in-1. Connect the 6-in-1 to the other side of the 2-in-1 (thus leaving me with all six slots empty....most expensive solution)

Seriously, I'm confused as hell. I'm sure others have done similar things with their cabs....whats the best (and cheapest) option?
 
Just a heads up, those 6-in-1 switchers on ebay are really prone to have many problems, this is what I learned when I was doing research for a similar project. I know that there's a site out there calling 'Mikes Arcade' that sells 2 in 1 adapters, i never tested them but it seems they are really good (but really expensive!)
 
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