Can overseas shipping be less using the Audiogon system or is there a better way?

 This category is the closest that I could find for this discussion. I have a Carver C-9 listed here that a gentleman in the UK would like to buy. After checking shipping locally, the rate was $140! Um no, can't do. So I looked at another option from MyUS.com or some name like that who offers 3rd party shipping. I am probably butchering this already, but the point here is that they only dealt with shipping discounts when using say Amazon or another large supplier.
 Me? I have one item that I would like to ship for a more reasonable cost. Maybe not even possible for us peons. Any advice or experience with this? Thanks all.