How should I change this tycoon script?

In the tycoon I'm working on, players create resources to sell to other players, so I've made buttons for purchasing them, however every attempt to make the scripts work the way I want has ended poorly. I'm not asking for someone to do it for me, but can someone point me in the right direction as to how to do it?

repeat wait() until script.Parent.Product.Value~=nil
local product=script.Parent.Product.Value:Clone()
script.Parent.Product.Value:remove()

local price=script.Parent.Price.Value

script.Parent.Name=script.Parent.ProductName.Value.." - "..price --sets name of brick
if price==0 then
    script.Parent.Name=script.Parent.ProductName.Value.." - FREE"
end

script.Parent.Head.Touched:connect(function(hit) --this is how people buy it
    chr=hit.Parent
        plr=game.Players:GetPlayerFromCharacter(chr)
        if chr:findFirstChild("Humanoid") and game.Players:GetPlayerFromCharacter(chr) and plr.leaderstats.Money.Value>=price then
        if plr.Name==script.Parent.Parent.Parent.OwnerName.Value then
            plr.leaderstats.Money.Value=plr.leaderstats.Money.Value-price
            product.Parent=script.Parent.Parent.Parent
            script.Parent:remove()
        end
    end
end)