How to make sure a character lives while morphing?

Hi

I have a StarterCharacter in StarterPlayer which consists of a Head and a Torso with a motor6d in the Torso to weld the Head and the Torso together.

Link to image to explain the setup

What I want to do is change the size of the Torso without killing the player. It kills the player at the moment because the motor6d disconnect which causes the head to disconnect from the torso which kills any roblox character.

In search for a solution I found this answer on scripting helpers which gives a likely answer which appears like it should work.

https://scriptinghelpers.org/questions/628/how-to-make-sure-a-character-lives-while-morphing

Try creating the new Character without resizing the current one, and then "transplanting" the humanoid into the new Character.

You can weld the new Character without it breaking, and only hopping the Humanoid over should stop it from dying.

However I cannot seem to get my script to work as the answer suggested because the only function I can find which moves instances is "Clone()" (which technically copies instances not moves them as the answer suggests.)

Here is my script so far which is executed when the character spawns and should work as the answer suggested.

game.Players.PlayerAdded:connect(function(player)
    player.CharacterAdded:connect(function(character)

        character:WaitForChild("Torso")
        character:WaitForChild("Head")


        --character.Head.CFrame = CFrame.new(1360.244, 5, 83.755)
        wait(1)
        character.Archivable = true
        Hum = character.Humanoid:Clone() --Clone humanoid
        character.Humanoid:Remove() -- Remove current humanoid
        NewChar = character:Clone() -- Clone the current character
        NewChar.Torso.Size = Vector3.new(5,5,5) -- Change the torso size of the new character
        motor6d = game.Lighting.RootJoint -- Grab the motor6d and set up welds to new parts
        motor6d.C0 = NewChar.Torso.CFrame
        motor6d.C1 = NewChar.Head.CFrame


        Hum.Parent = NewChar -- Paste old humanoid into new character model
        NewChar.Parent = game.Workspace -- Set the new character model to workspace
        character1 = character

        character = NewChar
        character1:Remove() -- Destroy old character

    end)
end)

This script creates the new character and rigs it however the camera does not follow the new character, and movement keys do nothing.

Has this way of scaling the character model without dying been patched out? Is there a better way of changing the size of a character part now?

Thank you in advance for anyone who replies, and if anything in my question is not clear please comment so I can make it clear.