Hey Bellydanzer -
Goal weights are an individual sort of thing, and often moving targets as we go along.

on setting a goal that is realistic for you.
We have a great 300+ club here, for those with starting weights over 300 lbs. We also have groups by age range and eating plan, so look around. You're sure to find something that fits.
Then just jump in and keep posting. Can't wait to get to know you better!