iirc the supra sa back then is much different than the hull under today's supra sa.
I'd wager the sa of the day will produce a mean wakeboard wake but the max is going to blow it away in surf performance.

supras will be nice but sitting in a max and sitting in an 8 year old supra the max will feel every bit as "luxurious" and the max will have the added benefit of a raptor powerplant, newer technology running the boat and might even have a warranty left.
max will have a whole lot more freeboard(night and day to the sa) if you boat on michigan at all. couple times out on the bay of GB we wished for more freeboard when the wind kicks up. our boat back then was very similar to the 13/14 sa.