Looks like it's available in standard frame or small frame so that looks like just right for you. Are you talking about the 360 series?

http://dreamebike.com/360Series.html

I'd go with a hub motor setup if I were you. I just think it'd be less maintenance, less chance of anything going wrong with a hub motor since all the moving parts are inside the hub rather than exposed like that. You might accidentally catch your pant leg in the chain or something. Other than that, looks okay to me. It has a 24v15AH lifepo4 battery which is what you want. That's going to be a good battery that will last a long time as long as you take care of it and charge it after each ride. If you lived near me, I'd build you one myself for free as long as you supplied the parts. Someone helped me build my first e-bike too but I had to pay him.

I live in Indianapolis, Indiana.

The dreamebike looks good for the reason being, they don't use any proprietary wheels or anything else so if you have a problem and you need a new rim, you don't have to purchase it from them and get charged an arm and a leg for it.