Working out purchase price of rental property based on rent

Hi,

I have created a spreadsheet to help me analyse rental properties I am looking at purchasing. Basically, rent less expenses equals potential profit.

I would like a field that can give me my "break-even" purchase amount. I'd like to be able to see what purchase price I would need to acquire the property at at any given rental value in order to make the "interest only, cash flow weekly" field equal zero. In fact, if I were able to do it for each of the mortgage term options that would be the ideal.

In this spreadsheet all of the yellow fields are the user inputs and the blue ones are the significant outputs. The highlighted pink was where I wanted to put the proposed field.

Ryan