Is this examine script theoretically possible?

I'm trying to make a script that will make it so that when a player right-clicks any part with an "examine" intValue in it, a box pops up that has text in it. I've been trying to do this but with no luck. Here's what I have so far but I may be doing the completely incorrect thing to make this happen. Am I going in the right direction? Also this script is inside an importer script that puts this script into PlayerScripts when a player enters the game.

local sGui=script.ScreenGui
local frame=sGui.Frame
local player=game.Players.LocalPlayer
local mouse=player:GetMouse()

local function onRightClick()
    local targ=mouse.Target
    frame.Visible=true
end

So Should I use (part) as an argument for onButton2Down() to tell it that I want the function to happen when a part is right clicked? This is what I have so far

local sGui=script.ScreenGui
local frame=sGui.Frame
local player=game.Players.LocalPlayer
local mouse=player:GetMouse()

local function onButton2Down(part)
    local targ=mouse.Target
if part:FindFirstChild("examine")~= nil 
	then 

    frame.Visible=true
end
end