Peter,
I have restored two Aceca's from body off, looking at the pictures the ripples on the roof, body front and back badly damaged. All I can say is very deep pockets required. Chassis work is not to costly, but new body parts well they add up big time. I bought a car last year that had poor chassis but the body is not bad, this will wipe $20-30K off the restore total cost (which is excellent for me, but always a risk).
Anyway, will be interesting to see what it goes for!
John