I'm going to try to attend Thursday afternoon, just to experience the atmosphere there. (Can't on Friday or Saturday)
Just browsing the schedule, it looks like the high-end stuff will be Saturday.
Some really nice cars are in the line-up, including two 1969 Boss 429s.
There is a 2004 Mach1 on Thursday's schedule:
https://www.mecum.com/lots/DA1018-332432/2004-ford-mustang-mach-1/
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