Thanks, Michael, for the information. Quite helpful.
If the idea is to avoid the entrance road near the Old, then that eliminates holes 3, 4, 6 and 7.
It seems as if the Old par threes at nos. 4 and 7 are out, along with New no. 6, as they are on the fringes of the property. That makes it a bit of a challenge to have four par threes in the rotation.
It doesn't seem possible to bypass either Old 15 or 16 and have some sort of rotation/composition.
Looking at the property, it seems as if the only possibility is to start on Old no.1. One would suppose the nines could be reversed and start on Old no.10, but then there would be quite the walk from New no. 18 to Old no. 1. If that's the case, then the rotation could be as follows:
Old 1, 2, 5, 13, 14, 15, 16, 17, 18 to comprise the front/first nineOld 10, 11, 12, New 13, 14, 15, 16, 17, 18 to comprise the back/second nine
I would have thought hosting it on the Old made the best sense, just like it played for the 2017 US Women's Open.
With that, I have the composite playing as follows at maximum yardages as reported on the scorecards:
515/450/490/480/250/510/215/505/580=3995 yards par 35495/415/425/415/160/540/450/425/520=3845 yards par 367840 yards par 71