How to Grow Tobacco

I grew 15 plants this year and they came out looking quite nice. They got to about six feet tall. These are pics of them at 3-4 feet tall.



I hung them up while I was building my curing chamber. They were there for about a week and coloured fairly well; Since I don't know what I'm talking about maybe they didn't.



I built a chamber out of basement floor insulation. It's cheap, light and held together with duct tape. My wife calls it, "the Tobacco Shanty."



Here's the (almost?) finished product:






So I said all that mostly to show off but also to ask... When is it done? I've read that it should smell sweet. I wouldn't say it smells sweet. It certainly doesn't smell like it used to. It had quite an off-putting smell at first but that's mostly gone now.

It's been in there for almost two weeks. It's been running between 110F-120F and 80% RH. Some sites say that's too hot and others say it's not hot enough.

Thank you for any advice you can give and please don't hesitate to ask for more information. I don't really know what's important yet.

Richard