So I think this meets your criteria?
https://www.yakima.com/railgrab
$284 for 149.91 lbs.
I will be putting this on my '06 with 66" crossbars.
On everyone of my 3rd gens I have had Yakima, but a different style system. I had oversize crossbars at one point they were 78". I have put at least 4-6 kayaks on it with each one weighing minimum of 50lbs. That means minimum of 200lbs if not closer to 35lbs0. Drove it on the highway just fine.
Yakima also has unbelievable customer service and that keeps me coming back.
You do need the stock rails though.
I would also check places like ebay or ORSracks, etc. for deals on the racks.
Here is one for $200
http://www.ebay.com/itm/Yakima-Railg...item1a043d0774
P.S.
I have no affiliation with Yakima and I actually have a Thule T2 hitch rack.