There is no doubt that is a conversion. Just look how the G is cut off on the marquee for starters.
Look, Im a BIG GT fan (I have a Complete myself and probably my most played game) I was simply stating what GT conversions go for around here. If you are happy with it, cool.
I'm a GT snob and needed to have the dedicated white cab with the medium res monitor.
Sorry you didn't get Spiderman, that pin is sweet.