Sell Tool/Weapon System failure, why? Fixable?

Hello all! I am in an urgent issue, and haven't been able to fix it! I've read some on the DevForum, and as well as on the developer wiki, but I cannot seem to understand how to do this, or what to do!

I've made various attempts, my latest will be posted below, but essentially what I am trying to accomplish is that when a player touches a brick, that the brick takes an item(if in their inventory), and gives them a specific amount of Gold for that item.

NOTE: This is a CUSTOM INVENTORY! It is located in the PlayerGui so, it's needed to call the playergui, as well, as find the weapon, and if the weapon is there, remove it, and give the Gold As well, this is in a ServerScript located INSIDE the part.

Here's my code, any and all help is appreciated! --

local player = game.Players.LocalPlayer
local char = player.Character
local wepon = player.char.PlayerGui.Arsenal.Backpack:WaitForChild("WoodenSword")
local gold = game.Players.LocalPlayer.leaderstats.Gold

script.Parent.Touched:Connect(function(touch)
	if touch then
		wepon:Destroy()
		gold.Value = gold.Value+100
	end
end)

script.Parent.Touched:Connect(function(touch)
	if touch.Parent:FindFirstChild("HumanoidRootPart") then--to see if its a player or not that touches it
		local player = game.Players:GetPlayerFromCharacter(touch.Parent)--self explainatory
		local gold = player.leaderstats.Gold
		local wepon = player.Character.PlayerGui.Arsenal.Backpack:FindFirstChild("WoodenSword")
		if wepon then--checks if the sword is there
			wepon:Destroy()
			gold.Value = gold.Value + 100
		end
   	 end
end)

make it a server script instead