Item program I would like to have....

First of i am not a programmer . So while i know what I would like i have no clue on how to do it..... I have seen a few different programs that show items for you champions but I have not seen one that does what I would really like. I have to wait a real long time to purchase a black cleaver. Which means a lot of time without some smaller buffs i could or might need. I want something that shows me what I am buying every step of the way that I can use out of game and shows me what the items i have selected cost and how they buff my champ every step of the way. Sure I can see what the pros have built by the end of the game. But I want to know why at the start I select item a as opposed to item b.