longer channel stock with feet has worked well for some.
I think if you look up cheap roof racks or something on this forum you will see lots of options...
while stock cross bars are only rated at like 160 pounds, I can tell you I have far exceeded that, safe ? but drove form oregon to alaska with a ton of weight in my rack mounted to stock cross bars. Yet I have 3 cross bars on extended factory rails ( you can also see this in the cheap roof rack thread)
the little rubber cross bars that sit directly on the roof can take about as much weight as 3 alaskan mosquitoes each
( our mosquitoes are big and should have tail #'s and landing lights
)
