Ben Graham Stock Valuation

The objective is to be able to type in a stock ticker and come up with a stock price value based on Ben Graham value investing methodology. ? This would be done using NPV analysis, working capital per share, liquidation value, and book value. A filter using 66% of these values as a buy point would allow one to view Graham's margin of safety prices. Also a list of ratios and other information Name, current price, Market cap, Net profit, cash, cash flow per share, earnings per share dividend yield return on equity, and current P/E. Data will have be pulled from different sources - perhaps Edgar, value line, [login to view URL], and yahoo. The idea is to consolidate the information to determine the real value of company. I am not sure of the pricing but I am a small business.