As far as how much of a mortgage you can qualify, this is based on your income and debts. A general rule of thumb is that the monthly housing payment - including property taxes, homeowner's insurance, and PMI- should be no more than 29% of your income and the total debts including house payment should be no more than 45% of your income.
Based on your income, that would translate to a monthly mortgage payment of around $604 per month. You may be able to exceeed that slightly, but that would be up to the underwriter and they are normally hesitant to grant exceptions in cases where you've had a bankruptcy.
Hope this helps!