I think your goals are realistic and achievable, but height (your frame) and activity level play a roll, at least for me.
At the start of HRT:
5'9", 128 pounds (moderate physical activity, low intake calories/vitamins/etc., drank alcohol, smoked)
Bust - 36A (inches)
Waist - 30
Hips - 32
20 months HRT:
Same height, 118 pounds (very very... very high physical activity, moderate to high intake with a conscious attempt to replace more than I spent, i.e. I eat healthy now, not frozen dinners and I don't drink any alcohol or smoke)
Bust - 34B
Waist - 26.5
Hips 33.5
The only "goal" I had in my mind at the start was I wanted 34 hips, I missed, but I also have a very high physical activity level now and most of the year that is in 100+ degree weather (fahrenheit), I don't store fat or water for long. I burn off allot more than I really should but I don't mind. I did try from about 12 months till 16 months to gain at least 8 pounds back but I just can't eat that much and my Dr says my weight is a concern but not a problem since I am healthy. Just be healthy and happy no matter what the numbers say, that's a good goal too