Your husband is a fool, and is about to find out how it really works.
You are very smart for not giving in to his ridiculous request. Your lawyer will tell you that 1st thing is to get the business valuation done. Say its worth 1 million dollars, well then he needs to give you 500k in cash to buy you out of your half.
So you will get all the savings, the house, the car, and he will get the business.
If you haven't talked to a lawyer - talk to a good one now before you have any more discussion with your husband about financial split options.
