Bilstein B14 PSS install advice (which oem parts to re-use)

Hi All,

I'm installing the Bilstein B14 PSS system on a 2008 Mazdaspeed 3. Just want to make sure I'm not missing any parts.

My understanding is the rear suspension doesn't reuse any of the oem parts; is that accurate? No bump stop, no spring seat. Just the Bilstein height adjustable perch on top and the spring seated on the lower control arm.

My understanding is the the front suspension re-uses the factory top hat including the upper strut mount+ upper strut bearing. It does NOT reuse the factory bump stop. Correct? When trying to take the top hat off to transfer the bearing case ripped opened and now need a new one (or better yet, pair). Ordering a new set, just want to be sure I'm not missing anything else before it gets zipped up this weekend.