Wreck Or Weld?

Since this is the first warm day we've had in T.O.
I've finally been able to go over this Diplomat and have discovered that my passenger side frame rail is dust. (doesn't exist).
It's not even touching the floor pan anymore.
There's nothing left of the rail to touch it.
So... The question is..
Is rebuilding this rail even possible or is the car toast.
Rockers look iffy too and the dog leg at the rear door looks to be a work of bondo art sculpture.

Save it or scrap it.
Weld it or wreck it?