yes on the LSD, but you will have to pay install a second time. You have to take the differential out when you take the gears out because the ring of the gears is bolted to the differential. Save money and get them installed together.
unless you have installed gears before, please don't do it. You need to know how to set the pinion depth, the backlash and get it withing millimeters of the mesh working perfectly. Otherwise, you will have some serious whining going on and you can negativly effect your rear end (ie, break it).