Good luck with that one!
My experience is that it will take you a week just to sort out the insurance to land at a course.
Everybody with even the slightest interest needs to be indemnified on paper.
How about KUDD Bermuda Dunes which is in the middle of it all.
Like anywhere in the US these days make sure you know "noise abatement" procedures which are not published by the FAA.
Try operating in and out of Van Nuys without busting something!!
A lot of the courses are under the final approach of KPSP.