Yamaha MSP10 monitors. What are they worth?

Bob_Gnarly

Apologies as this is genuinely not a stealth ad as I’ve not fully decided to move these on but there is very little to base a value on for these. 

I have owned them since new and paid a grand for them 20 years ago but have been unable to use them for the last 5 years since I got a real job and no longer have a studio.
They are the tobacco burst version and in near perfect condition apart from a cosmetic mark on the top of one speaker where there was another speaker stacked on top.
Any help as to how much these would be worth would be greatly appreciated