Having Trouble Listing an Item on Ebay?

I am selling a nintendo wii fit and wii balance board but as this is a large item, it will have to be sent via a courier. the problem is with the postage costs. I don't know where to specify on the listing the cost of sending the item via a courier. It gives an option to specify the price for postage of small items but it only allows you to specify a value of up to £2.00 but as this is a large item, it's going to cost a lot more then £2.00 to send the item.

Suggestion:

On the U.S. site, the shipping cap only applies if you're charging a flat rate on a single item. If you charge a calculated shipping rate based on the actual weight of the items you're selling, you're allowed to enter the weight and charge the appropriate shipping for it.
Look on the U.K. site under 'help' for 'calculated shipping' to see if you have the same 'loophole' we have here.
Good luck!