Sand the servo off and paint it.A breaker bar and some scaf-pole is more likely to resolve your seized nut issues than some impact gun. Admit it to yourself, you've bought a toy, not a tool.You'll need the 12-spline bit to do the driveshaft bolts. Get everything cracked off before you start doing anything like releasing brake lines etc - it'll make your life a lot easier if things are slackened off before it's all apart and non-functioning.
my only problem is the socket keeps slipping and is startin to round off I can still get purchase just don't wana round it..