Dan,
This particular Cutlass is not a 442 and there is no solid evidence presented to prove that it is indeed a factory built W-31. It has been discussed on the classicolds.com site where the cars authenticity has been called into question.
The "restoration" has some issues which can be corrected to bring it back in line with what showroom stock a W-31 should look like.
I don't know the car personally, but it features a Kool color combo and some nice options.
Consider it a nice Cutlass with some nice options added to it, unless proven otherwise.
Here are a pair of Aegean Aqua / Pearl W-machines from 2015 Olds Nationals