Advice for parts

[Atlantis]

My car has been squeaking in the rear for quite some time and im thiking of changing everything, bushings, control arms, ball joints etc

Just wondering if its a good price 200$ + 100 for shipping to montreal canada??? saw this on ebay the guys has a store with all kind of kits but not sure wich one to purchase???

http://www.ebay.ca/itm/BMW-E53-X5-RE...item1c182dda92

Kit Includes :

2 Upper Control Arms, 2 Guide Rods, 2 Integral Links, 2 Ball Joint & 2 Snap Rings
(1) 33 32 6 770 747 (Left Upper Control Arm) *(1) 33 32 6 770 748 (Right Upper Control Arm) *(2) 33 32 6 774 796 (Guide Rods)

*(2) 33 32 6 770 749 (Integral Links)*(2) 33 32 6 767 748 (Ball Joint) *(2) 33 32 1 091 687 (Ball Joint Snap Ring)

Let me know thanks