axle questions

this could be a dumb question but im looking for a master kit for my front axle.( dana 30) where could i find the most complete kit and for how much. i need all carrier and all pinion bearings with all the axle seals and crush sleeves etc. so what do these master kits really have is it everything that i will need?

http://www.drivetrain.com/ or eBay about $80.00