How would you value a private company?

• Use a DCF and comps but skip the illiquidity discount, since that discount only ever applies to distressed firms
• Apply the founder's own asking price as the base, then adjust it up or down for current market conditions
• Use its book value alone, since the balance sheet is the only reliable data a private company ever discloses
• Use DCF, comps, and precedents, proxying beta/WACC from public peers and applying an illiquidity discount
• You cannot value it credibly at all, because without any market price there is simply no anchor for the methods