Rotate "ghost object" then instantiate object with that rotation

I have a script which has a "ghost object" of a object that will be instantiated, and I want to be able to rotate the ghost object and then instantiate with the same rotation as the ghostobject.

This is void Update()

 if(Input.mousePosition != startingMousePosition)
 
         {
 
             RaycastHit hit;
 
             Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
 
             if(Physics.Raycast(ray, out hit, Mathf.Infinity))
 
             {
                 
                 Debug.DrawLine( Camera.main.transform.position, hit.point, Color.red );
                    //rayHitPoint = hit.point;
 
                 Object1.transform.position = new Vector3(hit.point.x, hit.point.y, hit.point.z);
                 
                 if (Input.GetButton("RotateInst")){
                     Debug.Log ("RotateInst cliked");
                     Object1.transform.Rotate(Time.deltaTime, 1, 0);
                 }
 
             }

And here is void RaycastToTerrain() (the important stuff)

 RaycastHit hit;
     Ray rayPos = Camera.main.ScreenPointToRay( Input.mousePosition );
  
     if ( Physics.Raycast( rayPos, out hit, Mathf.Infinity ) ) 
     {
        Debug.DrawLine( Camera.main.transform.position, hit.point, Color.red );
        rayHitPoint = hit.point;
     }
     
     if(Input.GetKeyDown(KeyCode.Mouse0)){
         Debug.Log ("Instantiating Windmill.");
         Instantiate(Object1, hit.point, Quaternion.identity);
             
     }

As you can see in the Update function you press the button "RotateInst" (which is arrowkeys) to rotate the object. How do I give that rotation to the instantiate method?

Thanks!