For an Anderson victory scenario, that map is probably as good as any, except I simply can't see Reagan losing California.
But to make up 45 EV for Anderson would be extremely difficult.
I should've given Anderson Ohio instead of California, but even then he wouldn't have 270 EV's. I can imagine a Phil Crane vs. Anderson vs. Carter or some other Democrat where Anderson ends up with 45 EV's or more. Anderson's territory was really limited by Reagan's strength in the West, the existence of a Democrat in the race, and the fact that he wouldn't be able to get any piece of the South in the 1980 landscape.