Would be tough to disable the ARF as this means "Almost Ready to Fly". You may have meant the AFS or "Auto Flight Stabilizer" (or something like that). And watch for a pitch change when you first fly the plane after removing the leading edge devices. It may require a lot of trim, just be ready for it. I'll let the others walk you through the mods though, I believe that Britbrat has some good ideas on this.

Good luck