Period items being removed

Sadly my Victorian house is apparently too big to sell and too much of a project for me to finish, so very reluctantly I am having to sell it to a developer who is going to convert it into smaller units.

However, I can't bear the thought of the gorgeous original fireplaces, floor tiles, tapestry rails, etc being ripped out or covered over - so I want to ensure that they go to a good home (hopefully in another renovation where they will be looked after & cherished).

My initial thoughts are to ask a salvage yard if they want them, but not sure if this is the best way really? Is it easy to remove a fireplace? Also, I need to ensure I get a half decent price for them, as they will be funding the deficit in my mortgage & I also have my doubts that a salvage yard would be prepared to pay for them. Are there specialist places (websites, auctions, magazines) that I could advertise what I have? Are people only after fireplaces and tiles or are there potentially other things in my house that could be removed before it all gets knocked about or ripped out. Really not sure how to proceed so any advice would be hugely appreciated.