mate, your looking at a pretty hefty price for that, 93 RC 88 mining 83 agility, all expensive stats on their own, i reckon youre looking at upwards of 250m easily.
Can 100% agree with you on that nothing beats the old 67s/69s. Plus you see the new GTs almost everywhere, probably one of the most common (upmarket) cars ive seen
I would suggest this dude as its who I got it off,
https://www.sythe.org/threads/wantacookies-vouch-thread/
I think he has a link on OSBot but thats the one I found him on.