What you're asking, truly, is something folks have been trying to do for eons with whatever guits they own. E.g, thinning out an LP to sound more stratty; beefing up a strat to sound more like a humbucker; rewiring the strat to get a bridge/neck like a tele. These just the most common desires I've heard and done myself; same goes for acoustic guits, right? Folks with this wood top, or that body size trying to emulate another. One's sonic wish list can be endless. The bottom line is it depends on your level of "how close" is "close enough."
Answer to your question: EQ. A graphic eq will get you in the neighborhood, a GEQ along with a parametric closer still. But everything still lays in the hands of the operator: how you play and how you EQ, especially the latter.
Think of it this way: "what" are the dominant features to a strat's neck-pup sound? Think about/analyze those frequencies (know the frequencies in Hz) in your head, then try it out on a GEQ and different pickup combinations. And have a Strat for comparison, natch. Keep at it and see/hear how close you can get. Again, the result may or may not satisfy you, depending entirely on how sonically close you're trying to get. Just in the ballpark (say for a gig and audience consumption), you'll get there with an "ok, sounds about right." Demand more and fugghetaboutit! The inherent sonic signature of guitars is precisely why folks own multiple electrics, acoustics, amps, pedals, etc.
Edward
