How to make welding scripts inside a local part or model?

I want to clone a room which is local (can only be seen by the players) and there are some welding scripts inside them (normal scripts), but since global scripts doesn't work inside anything that is local, how do you weld them together? Here's my illustration game: THE GAME

Most of the things in the room aren't welded properly because of the global scripts inside them.

So how do you fix it?

Simple welding script that works for me 100% of the time:

function Stick(x, y)
	local W = Instance.new("Weld")
	W.Part0 = x
	W.Part1 = y
	local CJ = CFrame.new(x.Position)
	local C0 = x.CFrame:inverse()*CJ
	local C1 = y.CFrame:inverse()*CJ
	W.C0 = C0
	W.C1 = C1
	W.Parent = x
end

function Get(A)
	if A.ClassName == ("Part") or A.ClassName == "UnionOperation" then
		Stick(script.Parent.Handle, A)
		A.Anchored = false
	else
		local C = A:GetChildren()
		for i=1, #C do
		Get(C[i])
		end
	end
end

Try it out.