You can currently buy for £370 - no cases - so with £70 name change you are down to £300 - offer that for £250 to someone - maybe - but in your position I would say or nearest offer - remember its what the buyer is saving that will swing the deal not what you have paid - so if you ask £250 + name changes £70 = £320 the buyer saves £50 but he might "hold" hoping FTC price drops further - your call - good luck