just bought in my local Farm Foods. Take look if you are nearby, well worth £4.99 ( IMO )
I had popped in Iceland before and seen they had reduced the one they were selling in the box to £10 and it was a similar weight ( 4 to 4.2kg ).
we had the Farm Foods one on Christmas day ( which I paid double for ). Easily fed four adults, 2 children and a baby. Leftovers for boxing day and a carcass for soup.
Expiry date is 2018 so I may have this year's Christmas dinner already. !!