How to orbit camera around player from top-down to sidescroller view?

I seem to have solved my problem. The truth is I got caught between complex spherical coordinate and orbital equations that I blinded myself from simple solution provided by Unity and the awesome Unity Answers community. Here's what I wanted to do and how I solved it:

The project is in a 3D environment, and it should alternate between a sort 3/4 top-down view and side-scroller view, depending on height and a certain in game situation. So I needed the camera to execute rotation when the player's height reached 200f off the terrain. If going up, camera should rotate to the top-view, and side-scroller when moving down below 200f height.

Its very basic, and if someone has a better way to do it, please do elaborate! I'll be grateful for your assistance. I hope this helps someone out there.

Here's how I solved it in steps:

1. Create a 3D Sphere object and Reset Position

2. Disable its Mesh Renderer

3. Enable 'is Trigger' in the Sphere Collider

4. Reset the desired camera's position

5. Make the camera a child of the Sphere object.

6. Move the camera to a desired offset from the Sphere's center (doesn't have to be within the sphere boundary)

7. Move the center of the sphere object to the center of the player object

8. Add a new script component to the Sphere object for movement.

Here's the script (it is not commented tho):

 using UnityEngine;
 using System.Collections;
 
 public class CamSphereMovement : MonoBehaviour {
 
     public Transform uTransform;
     private HoverEngine hoverEngine;
     private GameObject uPlayer;
 
     public float xRot { get; private set; }
     private float cameraZ;
 
     private bool camFlip = false;
 
     
     // Use this for initialization
     void Start () {
         uPlayer = GameObject.FindWithTag("Player");
         uTransform = uPlayer.transform;
         hoverEngine = uPlayer.GetComponent<HoverController>().hoverEngine;
         cameraZ = transform.position.z;
     }
     
     
     void LateUpdate () {
         transform.position = new Vector3(uTransform.position.x, uTransform.position.y, cameraZ);
 
         if (camFlip == false) {
             if (hoverEngine.hoverHeight.y > 200f && transform.localEulerAngles.x < 65f) {
                 transform.rotation = Quaternion.RotateTowards(transform.rotation, Quaternion.Euler (65f, 0f, 0f), 10f * Time.deltaTime);
             } else {
             camFlip = true;
             }
         } else {
             if (hoverEngine.hoverHeight.y < 200f && transform.localEulerAngles.x > 0f) {
                 transform.rotation = Quaternion.RotateTowards (transform.rotation, Quaternion.Euler (0f, 0f, 0f), 10f * Time.deltaTime);
             } else {
             camFlip = false;
             }
         }
     }
 }