THe factory case will work fine. A stock 1.76 will be good if you run in the 9's or slower, 9.0's and faster I would invest in an aftermarket gearset. Remember that good factory gearsets are hard to come by, and not a bad investment to run aftermarket gears if you can afford it at any level. For any PG parts,
www.tsr-racing.com. Their valve body design is good, I would recommend a trans brake VB even if you don't plan on using it right away. You don't have to use it now, but will have it if you need in the future.