That's what I've done thanksThe problem you have is that a normal size wheel is over twice the width of the space saver, hence the cradle would have to be modified to accept it, and then you run the risk of it hitting something as it would be hanging lower.
A large cage at the rear used to be fitted to accept a standard size wheel, like a huge chrome thing that swung out before opening tailgate.
For what it is worth, buy another standard size wheel, keep it at home and use the space saver just to get you home, then change the wheel.