Installing a Locking Diff in an 01-04 V6 Prerunner with 31" tires

I've read around a bit on this and found the options appear to be:

ARB Air-locker
Getting the TRD rear axle from dealer or salvage yard
Aftermarket LSD
Aftermarket No-Slip

I'm leaning towards after-market no-slip after what I've read on here and on a few other toyo taco forums. If I go this route what all do I end up needing to get it up and going? Would it be worthwhile to start checking around salvage yards to see if I can find the electronic/wiring end of the setup?

 

After market no slip is totally automatic... It locks the spider gears as soon as they spin. You don't need any wiring or anything besides the actual unit itself.

 

I recomend the detroit truetrac lsd if u drive yours on the road much, cant even tell its there and its gear type instead of clutch type so no matter how cocked up u get the suspension or what both wheels will always pull but like a 60-40 division of power instead of a 50-50 of a true locker