Best thing I can recommend is Craigslist, or if you have one around, REI. Going with Craigslist will save you anywhere from $200 to $250, depending on how complete the rack is and what accessories you want. I have no experience with Thule, but I have put Yakima racks on all of my cars, including my e30. If you go with Yakima, you will need four #30 clips.