Cracked and sagging floor

The bench seat cars come them little braces comin off the rockers on the bottom of the floor pan. So it stands to reason the buckets need somethin similar on the inside tracks. How close is "that area" in relation to the torsion bar cross member? Maybe you could come off that somehow for some extra strength.
I think the front bolts on my 66 have a brace but not the rears. I don't know why.