Goldie, I'm 5'1" and I was 42 when I did my unrestricted DAS nearly two years ago, for me I didn't see the point if being restricted for 2 years.
My first bike was a Yamaha Diversion, was a great bike when acutally riding along, the problem for me came when trying to get it in and out of my garage, and slow manoeuvres i.e. beginning and end of rides. Bike was way too heavy for me and height didn't help.
I now ride a Monster 696, it's such a light bike and seat height much lower.
From experience, it's good to get peoples thoughts on various bikes, but actually getting on one and riding it is the best thing you can do. Good luck