Guys thanks for all the feedback and also ideas of value, and while it is certainly more than I thought, I also am thinking I will hold onto it for now. The money would be tempting and making some space also would help me a bit too, but i think what I will do is wait until I have finished my S23 and see how I feel. I wont keep both cars, but having the GT here to drive occasionally while I'm rebuilding the S23 is cool too.
Stay tuned on the S23 thread as I will get stuck into it again soon. Cheers guys!