Trying to make a door. Zoning or Load Level with Animation.

Hi i have been trying to make a door. That like skyrim. Opens then let's you zone into an house or castle or whatever.

I have been following like 3 tutorial at once but to no avail. here's what i have so far.

Interact

using UnityEngine; using System.Collections;

public class InteractScript : MonoBehaviour {

 public float interactDistance = 5f;

 void Update () 
 {
 if(Input.GetKeyDown(KeyCode.F))
     {
         Ray ray = new Ray(transform.position, transform.forward);
         RaycastHit hit;
         if(Physics.Raycast(ray, out hit, interactDistance))
             {
                 if(hit.collider.CompareTag("Door"))
                 {
                 hit.collider.transform.parent.GetComponent<DoorZoneScript>() .ChangeDoorState();
                 }
                 else if(hit.collider.CompareTag("NextLevelDoor"))
             {
                 hit.collider.transform.parent.GetComponent<DoorZoneScript>() .ChangeDoorState();
                 Application.LoadLevel(0);
             }
         
     }
 }

}

DoorScript

using UnityEngine; using System.Collections;

public class DoorZoneScript : MonoBehaviour {

 public bool open = false;
 public float doorOpenAngle = -15f;
 public float DoorCloseAngle= 0f;
 public float smooth = 2f;
 public AudioClip open_door;

 private AudioSource source;
 private float volLowRange = .5f;
 private float volHighRange = 1.0f;


 void Awake () 
 {
     source = GetComponent<AudioSource> ();
 }
 

 public void ChangeDoorState()
 {
     open = !open;
     if (open) 
     {
         float vol = Random.Range (volLowRange, volHighRange);
         source.PlayOneShot(open_door,vol);
     }
 }


 void Update () 
 {
     if (open)  //open = true
     {
         Quaternion targetRotation = Quaternion.Euler (0,doorOpenAngle, 0);
         transform.localRotation = Quaternion.Slerp(transform.localRotation, targetRotation, smooth * Time.deltaTime);
     }
     else
     {
         Quaternion targetRotation2 = Quaternion.Euler (0,DoorCloseAngle, 0);
         transform.localRotation = Quaternion.Slerp(transform.localRotation, targetRotation2, smooth * Time.deltaTime);
     }
 }

}

Let me know if theres a way i can do.