The documentation that the IRS is likely to ask for if you are audited is what is your income and how is it spent - specifically on what - mortgage, gas, utilities, food, clothing, 401K,
in my opinion, things like a 401K could be an issue since its voluntary
see if you can manage to hold out for another 6 months because once you have owned and lived in the property for 2 years you'll qualify for the $250,000 exclusion.
