yep done this myself, if you don't have access to a wrecked P5 or es (esgt for you i think) this is what you would need.
front hub assembles from a five lug
rear hub assemblies from a five lug
rear calipers
rear brake lines
rear, front and rear lateral arms (trailing arms)
the long bolt that connects the hub assembly to the trailing arms in the rear, the stock one from the drum brakes aren't long enough
brake line brackets for the rear
some say you need to swap the brake booster, i didn't and haven't had any problems