First post Daytona question.

[RFXMM]

Long story short. Friend died has a Daytona at court appointed apraiser. Family will sell it to me. I don't know how to price it. I want a deal which is no problem with family since I will gladdly sell it back at the same price if they feel they want it for whatever reason. It is supposedly TT with a black face. Anyhow what should I look for and what is the most I should pay given that the appraiser is truthful in saying it is complete and original? What would be the no brainer price for any model in any condition? In other words what could I buy any model, movement and materials for and not get hurt without worring about condition in this economy?