I can't say for sure that the Restoration will fit, but it might.

"Unobstructed" means a straight shot through the doorway, with no walls or corners leading or departing from the doorway for at least the length of the sofa.

The safe bet when dealing with small door openings is to make sure your doorway height top to bottom is longer than the sofa. That way if things get really tight, the sofa can be stood on end to get through the opening. I've taken many a sofa in vertically that will not go through a door horizontally.