Re: What single (neck) can get me close to the Slash's leads?
I have absolutely NO experience on the field, owning no single coil gitars (will soon, though), and I have no background that makes my advice worthy, but I do think that having a single coil Alnico 2, with the SD Pickup Booster Pedal.
Then again, don't take my advice, unless someone else knows if it will work. I have no experience with this at all, it just sounds like an idea to me.