Yes - just hook up power and ground and have at it.
As for heated grid - as you said they are glued on (sticky on one side) and really can not be re-used. You can remove it carefully and install a new grid. They are still available from Saab and sometimes aftermarket.
As for heated grid - as you said they are glued on (sticky on one side) and really can not be re-used. You can remove it carefully and install a new grid. They are still available from Saab and sometimes aftermarket.