ReorderableList and object fields

So I have a list, and I am trying to render it in another editor window. I can't use SerializedProperty since the editor I am creating is using Generics and Reflections.

So if I do this:

 ReorderableList r = new ReorderableList((IList)value, type, true, false, true, true);
     r.onAddCallback = (ReorderableList list) =>
     {
         Type listType = list.GetType().GetGenericArguments().Single();
         object objectToAdd = null;

         if (listType.IsSubclassOf(typeof(ScriptableObject)))
             objectToAdd = (object)ScriptableObject.CreateInstance(type);
         else
             objectToAdd = Activator.CreateInstance(listType);

         r.list.Add(objectToAdd);
     };

     r.drawElementCallback = (Rect rect, int index, bool isActive, bool isFocused) =>
         {
             var element = r.list[index];
             Type listType = r.list.GetType().GetGenericArguments().Single();
             Rect newRect = new Rect(rect.x, rect.y, rect.width + 50, rect.height);

             element = (UnityEngine.Object)EditorGUILayout.ObjectField((UnityEngine.Object)element, listType, false);
             // element = (UnityEngine.Object)EditorGUI.ObjectField(newRect, (UnityEngine.Object)element, listType, false);
         };

r.DoLayoutList();

I get this view, where the object field draws AFTER the reorderable list

If I change drawElementCallback to this, it draw to small:

 ReorderableList r = new ReorderableList((IList)value, type, true, false, true, true);
     r.onAddCallback = (ReorderableList list) =>
     {
         Type listType = list.GetType().GetGenericArguments().Single();
         object objectToAdd = null;

         if (listType.IsSubclassOf(typeof(ScriptableObject)))
             objectToAdd = (object)ScriptableObject.CreateInstance(type);
         else
             objectToAdd = Activator.CreateInstance(listType);

         r.list.Add(objectToAdd);
     };

     r.drawElementCallback = (Rect rect, int index, bool isActive, bool isFocused) =>
         {
             var element = r.list[index];
             Type listType = r.list.GetType().GetGenericArguments().Single();
             Rect newRect = new Rect(rect.x, rect.y, rect.width + 50, rect.height);

            // element = (UnityEngine.Object)EditorGUILayout.ObjectField((UnityEngine.Object)element, listType, false);
             element = (UnityEngine.Object)EditorGUI.ObjectField(newRect, (UnityEngine.Object)element, listType, false);
         };

So how do I get the best of both world? Also, when I press the Add button, nothing happens. I tried adding a breakpoint, but VS doesn't want to :/