1. Increase the maximum anti-aliasing to 3, 4,

Yes, it was 4.

the minimum anti-aliasing to 2 or 3.

Yes, it was 2.

FALSE ! [:(]

Sorry, I confused with another project.
It was max = 3 and min = 1

time calculated = 13h 15mn (estimation, I'll update nextly)

I'll try with max =4 and min = 2.

@Martin, becareful the last picture is real (it's not generated with sh3d).