As promised (in the crossbar thread), I installed and tested the TAC Truck Accessories Cross Bars that you can get on Amazon for $57.
The XT5 crossbars that some people were using looked cramped to me, needed modding, and still cost over $150. With these, you just need to enlarge four of the pre-drilled holes and because they're "universal" bars they can still be used on other cars too.
Here's a photo write up:
Here are the bars intact with the locking key.
Slide off the post and pull out the rubber insert.
With a 1/4" bit, enlarge the center hole on the bottom. This is where it'll bolt to the pre-drilled roof rail mounts. I propped the post on a 2x4 before drilling.
After enlarging the hole, reinsert the rubber insert and drill through it again. After that, your bolt should fit perfectly. I had a bunch of bolts in my motorcycle bolt kit but otherwise you'll need a trip to the hardware store (IIRC they're 6 mm).
This is what the post looks like attached.
Here's the inside with the bolt attached
Because of the gap, I cut out some foam inserts from a spare kayak block. Shoving them into the gap also makes sure the crossbars don't twist (since they're only being held with a single bolt).
Here's the finished product.
So far I've tested it over the last three days, putting over 200 miles with speeds up to 75 mph. My 130-mile commute went from 2.7-3.0mi/kwh to 2.6-2.7. Other than that, the bars held up just fine. Slight whistling at 30-35 mph if you have your windows down. Otherwise, windows up, you'll hear wind/whistling with crosswinds or if you're going over 70 mph. I'll post another update when the weather clears up and I can test a roof box or kayaks. Enjoy!