3rd link is great once properly setup you'll realize. A good set of lowers (BMR is what I have) and an adjustable upper control arm (I have a brand new JPC unit never installed) to adjust for pinion angle when lowered. I also suggest some lower control arm relocation brackets if you really wan't to cut some good 60's. You will be fine with the stock 31 spline axles as the shop cars putting out insane power are still running them.
Might want to look into a 1 piece driveshaft if launching real hard, however I haven't seen a stock 2 piece break personally.