buy n' sell

I have an old guitar amp with a fucked speaker. Getting a new speaker and selling it will cost me more money than I would gain. So I'm looking for a shop that will buy this amp from me, fix it and resell it as their own. Anyone know what this kind of shop is called? There used to be one here but it's went and fucked off a few years ago :(.

Would rather not just dump the amp but if I can't find some other way to get rid of it I will.