Assuming she ends her fast, you ought to be fine. I've found once they hit the 1000 gram range, they put on weight fast. She's nearly there now. Get her feeding, then one appropriate sized rat per week and she should be 1600 to 1800 (or more) grams by November. Cycle and breed and have eggs on the ground this time next year.
While BPs CAN breed at any time during the year, I consider the primary breeding season to be mid to late winter here in the US. Thinking about your post, I immediately assumed by "this season" you meant the upcomming season. In my mind, the breeding season is over, and we are now in laying/hatching season. I would not try to get babies out of your female before next spring.