Choosing correct delivery method for oversized & high value item

I have an item for sale (Sporting), Size is just out of the Max perimeter of 61cm as it is 76cm, 12.3kg in weight.

Ebay just offers Yodel Store to door - but this only covers up to £25.00 & my item is worth a minimum of £300. What can I choose for delivery that will include a reasonable cover in case of loss or damage?