Supplier of "exotic" meats in NI?

We like to have something unusual for Christmas dinner and have had the likes of camel, kangaroo, wild boar etc before now. Sawers in Belfast is good for getting a lot of that sort of stuff, plus there's the stand currently trading at the Christmas market at City Hall, but they both say they can't supply any roasting joints, just burgers/steaks. I can order in from across the water, but it would have to be a bigger order for them to give any reduction on the £20 carriage charge, which is a bit steep!

So - anybody know of any other speciality butcher (preferably in Co. Antrim or Co. Derry) where I can get a more unusual/exotic meat as a roasting joint? I know there are some llama farmers about the place, wouldn't mind giving that a try, or some zebra (from a managed source!), horse meat, or even some good old wild boar ...