I'm trying to make a working equip/unequip inventory but i can't wrap my head around it?

player = game.Players.LocalPlayer
playerinWorkspace = player.Character.Name
inventory = script.Parent.Parent
inv_shown = false
local itemtoReplace

function replace()
    local item = script.Parent.theItem.Value
    if item then
        if item.itemEquipped.Value == true then
            print("This is already equipped")
        else
            if item.itemType.Value == "Weapon" then
                for j,k in pairs(player.Equip:GetChildren()) do
                    if k.itemType.Value == "Weapon" then
                        local itemName = k.Name
                        k:Destroy()
                    end
                end
                wait()
                itemtoReplace.itemEquipped.Value = false
                local itemtoEquip = item:Clone()
                itemtoEquip.Parent = player.Equip
            end
        end
    end
end

function itemEquip()
    local item = script.Parent.theItem.Value
    if item then
            if item:findFirstChild("itemLevel") then
                if player.Stats.Lvl.Value < item.itemLevel.Value then
                    print("Put Errror Here")
                end
            end
            local found_wep = false
            if item:findFirstChild("itemType") then
                if item.itemType.Value == "Weapon" then
                    for j,k in pairs(player.StarterGear:GetChildren()) do
                        if k.className == "Tool" then
                            found_wep = true
                        end
                    end
                    for j,k in pairs(player.Equip:GetChildren()) do
                        if k.className == "Tool" then
                            found_wep = true
                        end
                    end
                    for j,k in pairs(player.Character:GetChildren()) do
                        if k.className == "Tool" then
                            found_wep = true
                        end
                    end
                    if found_wep == false then
                        item.itemEquipped.Value = true
                        local clon = item:Clone()
                        clon.Parent = player.Equip
                        script.Parent.Visible = false
                    else
                        item.itemEquipped.Value = true
                        itemtoReplace = item
                        print("Replace? Message")
                        replace()

                    end
                elseif item.itemType.Value == "Helm" or item.itemType.Value == "Chest" or item.itemType.Value == "Back" then
                    item.Parent = player.Equip
                    for j,k in pairs(player.Equip:GetChildren()) do
                        if k ~= item then
                            if k:findFirstChild("itemType") then
                                if k.itemType.Value == item.itemType.Value then
                                    k.Parent = player.Inventory
                                end
                            end
                        end
                    end
                end
            end
    end
end

script.Parent.Equip.MouseButton1Click:connect(itemEquip)

I'm trying it so that the equip button will not work when an item is equipped, but will work on other items which will make the previous item (the equipped one) be unequipped and the new item equipped. However, it gets stuck on the second item with both items having the true value for their itemEquippeds