Feel free to make an offer if you are interested and think my price is high. Also I did not make this conversion, and I am selling it for what I paid for it roughly, I paid $75 just to get a matching orange A-board from Mexico. Also that auction is for a board you have NO idea what you are getting, you do not know if you can phoenix a board in unknown condition. You might be buying garbage.
Also as far as I know, the ROMS for this conversion board without the daughterboard has not been dumped, so no you cannot just take any cheap game and make this, which is why you don’t see any ST boots around (I bought this to see how it worked since I have never seen another ST conversion).
There is really no important difference between “Phoenixes” and “Conversions” and bootlegs on CPS2, all non-original games including phoenixed games, have non-Capcom code put onto EPROMs instead of MASKroms, so the difference between this boot and any phoenix is pretty much mental-they both play the same, and both do not have all original game code. A phoenix IS a bootleg.