How to serialize a List of ContentPacks (from Morph3D) in Photon Unity Networking?

Hello i am making a multiplayer game with custom character creation screen. Morph3D's Assets really helped me out with that. now i just have a issue to be able to synchronize the look of the player over the network i need to serialize the ContentPack and Morph objects (with the morph ones its easy bcuz i just have to send over the localName and value parameters which are a string and a float). This is my script so far:

 using MORPH3D;
 using MORPH3D.COSTUMING;
 using MORPH3D.FOUNDATIONS;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class PlayerAppearance : Photon.MonoBehaviour {
 
     public Character ch;
 
     private bool update = true;
     private M3DCharacterManager character;
 
     // Use this for initialization
     void Start () {
         character = GetComponentInChildren<M3DCharacterManager>();
     }
     
     // Update is called once per frame
     void Update () {
         if (update && ch != null) {
             update = false;
 
             character.RemoveAllContentPacks();
             foreach (ContentPack cp in ch.clothes) {
                 character.AddContentPack(cp);
                 character.AddContentPackToModel(cp);
             }
 
             foreach (Morph m in ch.blendshapes)
             {
                 character.SetBlendshapeValue(m.localName, m.value);
             }
 
         }
     }
 
     public void UpdateAppearance() {
         update = true;
     }
 
     public void OnPhotonSerializeView(PhotonStream stream, PhotonMessageInfo info) {
         if (stream.isWriting)
         {
             stream.SendNext(update);
             if (update) {
                 stream.SendNext(ch.gender);
                 stream.SendNext(ch.clothes.ToArray().Length);
                 foreach (ContentPack cp in ch.clothes) {
                     // Here send
                 }
                 stream.SendNext(ch.blendshapes);
             }
         }
         else
         {
             update = (bool)stream.ReceiveNext();
             if (ch == null) ch = ScriptableObject.CreateInstance<Character>();
             if (update) {
                 ch.gender = (Gender)stream.ReceiveNext();
                 ch.clothes = new List<ContentPack>((int)stream.ReceiveNext());
                 foreach (ContentPack cp in ch.clothes)
                 {
                     // Here receive
                 }
                 ch.blendshapes = (Morph[])stream.ReceiveNext();
             }
         }
     }
 
 }

if anyone wants to look at my folder structure and/or other classes: https://github.com/lukas2005/VRHackspace/