If trying to be realistic and hold it at same time of year, and find a course that could accomodate the logistics, I'd go with just switching these last 2 weeks or three weeks. In any order you like, Riviera, Pebble, and the Fought course they are on. I think any one of them could be the celebrity pro am, at least Pebble and Riviera have the same star studded cache. All of them have the logistics infrastructure.
Going away from California, to a logical same time of year venue... Kiawah TOC is probably OK, as is Bulls Bay ( and the walk there will be a wee strenuous but good for competition)
Is Stone Eagle a possible?