Honestly you'd be much better off with a Ninja 250R. It's a hell of a lot better to learn on and would be fine for someone your size. It's the same bike since 1987
everyone I've talked to has told me the 250 is like a toy bike. I need something that can go 80 miles an hour for an hour. Not to mention I'm not trying to buy a new bike in a few months when I get tired of it. Unless I found a 250 for really really cheap I wouldn't even bother. I wouldn't mind a 500 especially a 500R. 600 is my preference, but it all depends on price and what I found. I found a decently priced 500 but we'll see. I just wish i was more mobile, I could have picked up a few nice bikes already if I didn't have to study 8 hours a day lol.