That's some serious tuning! Anyhow, there is a simple answer, email/ phone their customer support/ tech department. They will be happy to tell you as they are probably affiliated with the company. I know Schecters come with Elixor strings (with a tag to tell you) in an effort to make you buy elixors (it didnt work, i hate them).
I play a 5 string too, and I just love my D'addario EXL160-5 as they are easily playable (when grinding out some Strapping Young Lad bass lines) and sound great.
For you though, I would prescribe some Pro Steel (not nickel wound as above) as they gives a noticeable increase in brightness, attack, and growl. I actually prefer these myself, but the stainless steel eats your frets and finger board faster than anything, nickel wound doesn't. Anyway, try these: EPS160-5
Edit: The bass player for Cradle of Filth uses Rotosound strings, so that may help you get their tone. Having said this I tried them with my band, and the D'addario Pro Steels still came out as the best beyond doubt. Good luck!
