To my fellow base models:
I purchased the oem rsb and endlinks here and just finished sourcing the other parts.
You will need the following: (prices are from local dealer, I will be checking Subaru Genuine Parts for a better deal)
Clamps Part# 20466fg000 (2) at 6.40 each
Bolts for Clamps #010108200 (4) at 4.18 each
Endlink Bolt # 901000360 (2) at 4.68 each
Endlink nut # 902370055 (2) at 2.05 each