The serial number on my Prophesy indicates that it was made in July 2012 at the Quingdoa plant.
It does have the Gibson pickups.
OK, I got the vernier gauge out and hopefully have some numbers for you. Measured from the top of the string to the top of the PU/fretboard. The strings are 10s.
My measurements are as follows:
Low E nearest bridge 5.5mm
Low E at nearest neck 3.9mm
High E nearest bridge 3mm
High E nearest neck 2.5mm
Low E 4.3mm both ends
High E 4.2mm both ends
It probably wants looking at again as I think that the neck PU is probably too high. But at my level of playing it isn't going to make too much difference!
Action height at the very end of the neck:
Low E 4.3mm
High E 2.8mm
Still plays beautifully and sounds, to my ears are least, rather wonderful. My old band's guitar player still heads straight for the Harley Benton 450L every time he visits and we have a jam. No class, that boy.