Plymouth : GTX Plymouth : GTX | eBay
Just think of it as an orangish red, and forget the GTP part... and open your mind to this and your wallet!!!
Good luck finding a GTX much less red, under 150k and at a decent price. Not saying its not possible, but gonna be hard to find. So good luck. BTW why not get a good GTP Coupe with low miles and buy it and just add the parts. The title most likely will just read as a GTP and it'll have the RPO codes for the SLP accessory package depending on what it came with. Just get the parts you want and make it a GTX, few will know the difference, even fewer will really care.