BMW 5 Series E39. Diesel Auto 2000

Front Suspension and springs
Can anyone advise? I've been using Haynes Manual for the last 20 years but sadly they don't have one for my current car, though I'm sure their experts, or one of you other clever guys, knows a thing or two about changing my shockers and springs.
I've just taken delivery of the parts, now I'd like a few Must DO's and DON'Ts before I start.