Dave,
You certainly have a project, that someone with a unique approach, was pursing, on your hands.
It's hard to know where to begin.
The good points:
The barrel points in the right direction from the butt and the trigger, itself, is where it belongs and also pointing in the right direction. I don't know anything about VA patchboxes, but it, along with the buttplate, triggerguard, ramrod pipes, iron ramrod, percussion lock and the barrel, individually, all appear salvageable.
Perhaps there is value in leaving the patchbox and buttplate, in place and separating them, at the wrist, from the rest of this piece. What does the other side of the stock look like and what kind of shape is the barrel in?
It's sad to see pieces in this condition, but it is what it is.
Good luck!