I am doing everything but the tie rods (hoping the foil stickers from Mercedes mean newer), including springs (already have all four), swapping spindles as the Japanese bearings wiped them out, but reusing the U.C.A.s as those were almost new. What have noticed is German parts are even harder to find than a few years ago, so went ahead with a couple extras while available and have it all apart (especially with the driveline out makes a once in a lifetime opportunity, hopefully). Myself feel shopping around can find those deals, N.O.S. parts, and know what am getting.
If you want to go with that kit, suggest emailing Kaia and just ask. Have not been a regular, but some things only through them and went above and beyond when had some oddities testing the C.I.S. injectors.
Hope this helps, good luck, and have fun.