If it were me, I would postpone the wedding. The money lost will not compare to the money you may lose if you have to divorce later, or if he does something that you are now liable for as his wife. Money and / or saving face should not be a determining factor here.
If he is serious about his efforts to take care of this, what is one year's wait in the scheme of marrying for life?
And read this Site and you'll see what's ahead if he is not serious.
Best wishes to both of you.