Do you think it's fine for a graves to kill full hp inhib tower with 1 wave of minion and 2 items?

I don't doubt it. I did the math a while back on the whole ziggs bot lane and just two champions (a yi and Ziggs) can kill a turret before the 3 minute mark in two minion waves with plenty of time to spare.

By the time a champion like Graves has two full items he should be able to kill a turret in one wave, especially since inhib/inner turrets have less health than outer turrets, especially if it is a built up wave of 8-9 minions with one being a Cannon.

Totally get wanting to see a visual though.

(Also while antipathetic is the correct word I would avoid using it as it can cause a lot of confusion and disrupts the flow of people listening/reading to you. There was a study done a while back on how using big words in things like resumes actually makes you less likely to be hired and often comes off as sounding stupid. In general if you can't use a word naturally in a sentence avoid it because it makes you look stupid. Not trying to be rude or anything, just wanted to let you know. Totally get if you are antipathetic towards my view though, if you want I can try to pull up the research for you ;P)