An 'E' Phrygian Dominant scale is the same as an 'A' harmonic minor scale only the scale starts at a different point in the scale...

'A' harmonic minor scale:
A,B,C,D,E,F,G#,A

'E'Phrygian dominant scale:
E,F,G#,A,B,C,D,E

It's not that difficult. Also, there are tons and tons of book that will not only give you the scales, but also the tab, descriptions on how to define a scales and various ways to link multiple positions of these scales together. Read up!

By the way, shred is NOT dead...if this be the case, our musical culture is in a state of decline. Without technical proficiency there would be no advancement in music. In this case we might as well wrap goat skin around a tree stump and call it a drum. But on the other hand...is Britney Agu-Lo Simpson what one would call "advancement"???...hmmm...maybe shred IS dead...nah! Just like tie-die and rubics cubes - it'll fade away soon enough!