Advice on ordering correct parts for X5...

[NittanyX5]

(2001 BMW X5 4.4i 189,000 miles)
Mechanic says these parts are bad (quoted $2300 parts and labor; says labor is the bulk of the quote):
1 - Both front lower ball joints
2 - Both front lower tension strut bushings
3 - Left front axle
4 - Right inner tie rod
5 - Left rear sway bar link
I'll order parts but want to make sure I get the right stuff. Most likely buy the parts and let him fix or park it in garage and tackle it myself. Replaced valley pan and valve cover gaskets before so may be able to work up the nerve to do this too.

For items 1 and 2, seems straightforward or should I get a control arm kit?
For item 3 I think I'll just get the axles for both sides.
For item 4 I think I should get both the inner AND outer?
For item 5, straightforward.

ECS, RockAuto, Pelican are a few sights I found to order from unless someone recs another.