Ah yes, the virtues of unrepentant restoration.
Manoir Richelieu offers a dramatic setting, but Herbert Strong's original layout was badly routed, with about 6,100 yards squeezed out of too many terraced holes and slopes to fairways and greens that would have been simply unplayable today. It didn't help that a renovation project in the 1960s, as I recall, had eased some of the cross-fire dangers but led to some very weak holes.
As I recall, there were no original design plans or sketches to rely upon, only some very poor B&W photos, crude porgam maps, and the invariably unreliable memory of a few local veterans. The routing I saw in late 2000 was cramped, dangerous, and made very bad use of the site and there was no chance of a pure restoration. The place was overrun with Poa annua, the bunkers and tees all needed reconstruction. If they had spent the $millions needed to do that work they still would have landed a very cramped course. The only sensible way out was to expand to the west and north, which Graham Cooke's design did. Along the way the holes gained more room, better views of the St. Lawrence River and more playable ground.
The decision not to do a pure restoration made perfect sense strategically, aesthetically and economically. They kept much of the older style in the modern bunker placement, mounding and green contours, but also dramaticaly enhanced the property.