I also think dark color is great for the 35 size, but of course, if you really do not like it and will not use it, then you should consider selling it given it is alot of money. If you are planning to sell to the resellers like Brand Off then make sure you do not remove the stickers on the hardware, as that will get you a much higher price.
I would suggest you bring it to show them and ask for a quotation, then you can decide whether to sell it, as you may not recover the full amount you had paid.