Rob,
Good decision. Mechanical, body and interior - the three pillars of a restoration. Mechanical and interior are relatively cheap to do but the body is really the financial black hole; and its so important because that's what everyone makes a decision on about the value of a car - panel fit and contours- there are no cheap alternatives to get a worthwhile result. The motor can be tired, no one but you will know, the interior can be a bit off but it will be forgiven BUT an eye will instantly pick out a poorly fitting door, swage lines that don`t line up and a bonnet with uneven gaps and a grill that is crooked. So the moral to this little tale is, body first, interior second and mechanicals a distant second and third.
Good hunting