Rabbit core support removal

[esox]

I am removing a core support from a donor car to install on a different one.
I have drilled all the spot welds, and both inner fenders are free from the core. I cut the bumper mount seam welds, removed the engine mount.

The top half of the core moves freely now, but the bottom half is still firmly stuck. Obviously the bumper mounts are sticking.

Any tricks, or sneaky welds that i may be missing? I would like to remove it in one piece.

[Fatmobile]

There are some spot welds around the inside edge of the bumper support holes