How do I Instantiate an object that is half the size of the parent object?

I am trying to make a enemy that splits in Unity 3D when I press the key K. While doing this I have run into several problems. Firstly, whenever I try to make a copy of the object it always copies into the centre of the scene (0, 0, 0). What I want to happen is when the K key is pressed, the copies are spawned around the parent object with random distance between a maximum range and a minimum range. Secondly, whenever I try to scale the copies, it doesn't work as BoxColliders cannot be scaled. Finally, this isn't a problem but how do I limit the amount of times the clones can duplicate themselves. I will leave the code below for anyone willing to help.

Thank you if can help!!

 public void Awake()
 {
     scaleChange = new Vector3(-0.10f, -0.10f, -0.10f);
 }

 void Update()
 {
     float xSpread = Random.Range(MinExpel, MaxExpel);
     float ySpread = Random.Range(MinExpel, MaxExpel);

     Vector3 spread = transform.position + new Vector3(xSpread, ySpread, 0);

     if (Input.GetKeyDown(KeyCode.K))
     {
         CreateClones();
         DestroySelf();
     }
 }
 void CreateClones()
 {
     Instantiate(Clone, spread, Quaternion.Euler(0, 180, 0));
     Clone.transform.localScale += scaleChange;
 }
 void DestroySelf()
 {

 }