'wrong' used Thule parts useful for roof rack?

[RecipeForDisaster]

Thanks so much. I am definitely not set on Thule-anything used that's in good shape is under consideration.

Thank you for explaining *why* it won't work and what parts I'd need to add. I may see about doing that, since it might still be a good deal.

Those gutter feet in the REI link... those still don't require the front to back bars, right? So there'd just be the crossbars, I'm hoping. I haven't seen a lot of racks without the side bars, so want to make sure that that's an option and I don't have to buy another part.

I'll take that Mercedes if you pay for it!