How to best sell over ordered /spare lego

LDigital

Dont ask how, something went wrong with the owl (remove from wishlist) options and I managed to over order quite a lot of lego while building my UCS imperial shuttle from scratch. I now have tons of spare parts left over which I think would be quite valuable. I am not sure I have the time to really set up and list out my own shop. How should I got about selling it and recouping as much of my funds as possible? are there any shopkeepers who might be interested?

Its mostly white and medium stone grey parts

P6tu

I think it would help a lot, if you'd state the location and the spares you have...