Thing is, for the buyer these are second hand appliances, so they expect them for nothing. For you to replace them though, you will have to buy new, and these will cost if you want any decent stuff.
I would leave anything fitted, but make them as part of the price of the sale, anything standalone can either be bought at a reasonable price by the buyers, or go with you to your new place.
I know people that bought houses without kitchens or bathrooms, and when asked if they could get a discount based on these things being missing was basically told "the house it what it is, the price isn't changing just because you need to put in new kitchen/bathroom".
I also know people that spent thousands on buying old furniture they didn't want just to make sure the sale went through smoothly. One even had to promise to take the cat! They tried to give it away afterwards, the cat came back by itself, so they inherited a pet to get the house!