I'm wondering if the areas shaded in red in the first image below are safe areas to put jack stands when needing to remove both rear wheels. I have the rubber pads that insert in the jack points just to the outside of these areas but my challenge is where to I put my jack stand once I have the car raised since the hydraulic jack is using the jack point. These 2 metal bars look like they are structurally sound enough but I don't want to support the car somewhere I shouldn't. From all of the schematic images I was able to find for the car, it seems like it's a solid spot for jack stands.
I included a few images that show one of these metal bars from a top view. It appears to a safe area to support the vehicle from these images. Not sure if the added REx makes any difference, doesn't seem like it would.
Please pardon the dirty undercarriage.