This all depends. Weigh the cost ( this includes your time) of these restores against the amount that not fixing these things would bring down your asking price.
It’s always best to speak to your Realtor about this right away. They should be plugged into the local real estate market and know( ballpark) how in-demand your mansion is likely to be, with or without these changes. Figure out the risk versus reward of not acting, and then make your decision.
Fixing these issues may not be worth your time if customers in the area are motivated to grab whatever they can.