Jaxx, the only way to measure draw length is by drawing an actual bow. Based on your height, I'm gonna say your draw is between 25 and 28 inches. Most bows you order are listed at 28 inches, and loose about 2-3 lbs per inch. So if you want a bow that is 30 lbs at 26, just order one that is 35 at 28.
There are a few companies selling "kits" with almost finished bows. You could also post on the "trading post" section here that you are looking for a bow.
No doubt, someone from illinois will chime in soon.