Like the others say let your hubby get his head down and pay off the od and save up. It will cause loads of problems if you don't.

If they deny because of the lack of savings then your going to be hit with another visa fee to pay when you reapply. Then you will need to save more and take longer.

If your hubby to be and you need to find a house to rent or buy he will need a deposit. Just as you move over which will increase costs. A deposit and the money to help pay for things to help you settle (Clothes, and what ever)

Its a tough thing to say get the money sorted otherwise it may well cause you problems.