Seeking Help: Conjuring Furfur and Other Dilemmas

I need help doing the following things:

  • Calling the being Furfur
  • Calling a familiar
  • Calling anything in general
  • Harnessing electromancy (since Furfur commands storms as well)
  • Obtaining grimoires, because I own none except for pdf’s of the Key of Solomon, Grimorium Verum, and Clavicula, and some of the requirements in there are unobtainable as far as I’ve seen (virgin lamb’s skin vellum and four disciples???)

Besides that, I’ve heard great things about Sallos and Barbatos; what’s the difference in their spheres, really?