Can I get help with loadout?

Hello, I have a loadout GUI that I need to setup so when going through the weapons it'll say locked or unlocked, an make the weapons buyable with leaderboard credits, an cycle through the weapons as you click an arrow to choose your weapons, an my equip button will be the button that gives you the weapon, this is all I have currently.

local currentGun = script.Parent.Background:WaitForChild("CurrentGun")
local equippedGun = script.Parent.Background:WaitForChild("EquippedGun")
local eqGun = equippedGun:WaitForChild("EGun")
local cuGun = currentGun:WaitForChild("CGun")
local v = currentGun:WaitForChild("GunNumber")
while true do
	wait(.1)
	if v.Value == 0 then
		cuGun.Value = "Gun1"
	elseif v.Value == 1 then
		cuGun.Value = "Gun2"
	elseif v.Value == 2 then
		cuGun.Value = "Gun3"
	elseif v.Value == 3 then
		cuGun.Value = "Gun4"
	end
	equippedGun.Text = "Equipped: " .. eqGun.Value
	if currentGun.Owned.Value == false then
		currentGun.Text = cuGun.Value .. " [Locked]"
	elseif currentGun.Owned.Value == true then
		currentGun.Text = cuGun.Value .. " [Unlocked]"
	end
end