Need rear crossmember dimensions

[new_2_soobaaroo]

I am in the middle of changing out the rear subframe and doing needed rust repairs. The rear crossmember that the lateral braces for the subframe mount to need to be reconstructed from scratch, as it is not available. (It is part number 52140AE58B). There is not enough of the crossmember left for me to get a measurement of how tall it is (or should I say "was", as the entire bottom and much of the sides are simply gone), and I failed to get a measurement of where the braces were in relation to the floor/frame members before removing the subframe.

Does anyone know the height of this frame member, or would be willing to measure it for me?