Creating a preview block for a building game[help]

I am trying to create a building game, similar to a game called Besiege.

I am having trouble creating a preview block, a partly opaque block that will show where the block is going to be placed once I left click to place it.

Here is my current code, you can try it using a cube prefab that is 0.25m

C# ;

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class MouseRayCast : MonoBehaviour
 {
     public new Camera camera; //MAIN CAMERA
     public Transform activeBlock; //CUBE PREFAB
     bool mouseRelease = true;
 
     void Update()
     {
         RaycastHit hit; //declares raycast
         Ray ray = camera.ScreenPointToRay(Input.mousePosition); //the raycast
         if (Physics.Raycast(ray, out hit)) //if raycast hit something
         {
             Transform objectHit = hit.transform; //declaring where the raycast hit
             var newBlockLocation = objectHit.position + hit.normal / 4; //creating new position
             var newBlockRotation = objectHit.rotation; //creating new rotation
             if (mouseRelease == true)
             {
                 if (Input.GetMouseButtonDown(0) == true) //if mouse is clicked
                 {
                     Instantiate(activeBlock, newBlockLocation, newBlockRotation); //creates the block
                     mouseRelease = false;
                 }
             }
         }
         //test if the player releases so they can place a new block if they did
         if (Input.GetMouseButtonUp(0))
         {
             mouseRelease = true;
         }
     }
 }

I want to instantiate the active block, but remove any colliders on it so it doesn't interfere with the raycast, and change the material on it so I can make it see through, but I dont know where to start.

I've tried instantiating a block that places every frame where you hover your mouse, but I can't get the block to destroy itself after every frame, I also can't seem to figure out how to change its Components(like its collider and material).

I thought about just creating each prefab from code when executing the placing code, and then having a different prefab for the preview block, but I don't want to do that. I want to be able to freely change each block without having to go into the code to change it. Although I do not mind changing the components after the prefab has been instantiated, that would be fine for me :)