Character customizer ingame

Customizer.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class Customizer : MonoBehaviour
{

	public GameObject Panel;
	public GameObject Button;
	GameObject[] current = new GameObject[3];

	// Use this for initialization
	void Start ()
	{
		GameObject inventory = GameObject.Find("inventory");
		
		// getting all data as string
		string file = JsonReader.LoadJsonAsResource("data.json");
		// getting all data as structures
		IncomingData data = IncomingData.CreateFromJSON(file);

		// array for Slots
		for (int i = 1; i < data.slots.Length;)
		{
			GameObject panel = Instantiate(Panel, transform.position, Quaternion.identity) as GameObject;
			panel.transform.SetParent(inventory.transform, false);
			// array for Items
			for (int k = 0; k < data.items.Length; k++)
			{
				if (data.items[k].slot == data.slots[i].id)
				{
					// make only start items active
					GameObject obj = GameObject.Find(data.items[k].name);
					if (obj)
					{
						if (data.items[k].id != data.slots[i].start)
							obj.SetActive(false);
						else
							current[i] = obj;
					}

					GameObject button = Instantiate(Button, transform.position, Quaternion.identity) as GameObject;
					RectTransform[] content = panel.GetComponentsInChildren<RectTransform>();
					button.transform.SetParent(content[2].transform, false);

					// create additional variable to use in lambda
					int slot = data.items[k].slot-1;
					button.GetComponent<Button>().onClick.AddListener(() => ButtonClicked(obj, slot));

					// change button text
					Text[] text = button.gameObject.GetComponentsInChildren<Text>();
					text[0].text = data.items[k].name;
				}
			}
			// workaround to swap Top and Pants
			// TODO: look into SetSiblingIndex
			if (i == 1)
				i = 0;
			else if (i == 0)
				i = 2;
			else
				i++;
		}
	}
	
	// Update is called once per frame
	void Update ()
	{
		transform.Rotate(new Vector3(0,Time.deltaTime*30,0));
	}

	void ButtonClicked(GameObject obj, int slot)
    {

		if (obj && (obj != current[slot]))
		{
			current[slot].SetActive(false);
			current[slot] = obj;
			current[slot].SetActive(true);
		}
    }
}

IncomingData.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[System.Serializable]
public class IncomingData
{
    public Items[] items;
	public Slots[] slots;
    public static IncomingData CreateFromJSON(string json)
    {   
    	return JsonUtility.FromJson<IncomingData>(json);
    }
}

[System.Serializable]
public class Items
{
	public int id;
	public int slot;
	public string name;
	public int sort;
}

[System.Serializable]
public class Slots
{
	public int id;
	public string name;
	public int start;
}

public class JsonReader : MonoBehaviour
{
	public static string LoadJsonAsResource(string path)
	{
		string filePath = path.Replace(".json", "");
		TextAsset jsonFile = Resources.Load<TextAsset>(filePath);
		return jsonFile.text;
	}
}