GO FOR IT!
You've made significant distance in your weight-loss plan, it would seem from your stats, so treat yourself!
Actually, that's not a bad idea to get it early...and use new studs/hoops as rewards for further goals, hehe...
It's my reward for reaching my goal weight...my partner has been after me to get one since before we were even a couple, and I've wanted one ever since I was a teenager...so, I will live vicariously through you until my turn comes!