As far as Agile goes, you have get a quote, however you can get a Damn nice ibanez or Schecter for a fraction of the price, Schecter has models with EMG HZ pups for less then $500, check 'em out! They beautiful guitars and they perform amazingly, I've never had promlems out of mine, the hold...
Whitechapel and Suicide Silence, I Love the 7 string brutallity from these bands. They inspired me not only to play 7, but to play Deathcore. I use ADADGBE, and GCGCFAD tuning on my sevens, love it!