Where is the best place to buy used instruments (Keyboards)

Im looking for a certain keyboard. Either a Casio SK-10 or a Sk-1 Which i hear is pretty rare and just a stripped down SK-10. Sk-10 is ment to be common but £20 is the cheapest im seeing with 3 days to go.

 

craigslist? ebay? local mom and pop shops.

 

You find a lot of mini 'toy' keyboards at car boot sales etc, but if you are after that specific model then ebay is the only place you'll find it. Putting an ad on circuit bending forums may help, but it will likely be the same price as both places will have the same customers.

For circuit bending I take it? I do have a Casio PT-87 here if that is any help...

 

Gumtree can be worth a look too: http://bradford.gumtree.com/

 

You might also want to try your local Cash Converters (or similar pawn shop). Used to see lots of instruments in my local branch.