Some of these posts have really made me laugh. ?
We used to have a friend that raised a pig for us each year and happily it used to come to us via a butcher, but the deer arrives minus head and innards, then hangs in the garage for a week or so, until it's skinned and butchered by my husband who's now quite proficient. See here for pig story ?: www.gransnet.com/forums/food/1207810-Pigs-trotters-recipe
Re catering numbers; I am one of eight siblings and now I have my own very large extended family, including foster children and others who have lived with us long enough to identify as part of our tribe family - and we like each other enough to meet often, so we usually get together around food. I always cook from scratch so I don't keep meals in the freezer. I love baking, and preserving, which I find relaxing, but cooking for large numbers is all about having several 'go to' meals, and friends, family and visitors all get roped in with setting tables, moving chairs, and whatever else I can find for them to do that helps me put food on the table.
My son goes spear fishing and catches crabs, fish and lobsters, which he shares with me. Another son makes his own ice cream and has a pizza oven, which is very transportable. So the provision of food is often a shared responsibility. Our daughter has hens, but sadly lives too far away to keep us regularly supplied with eggs, which I get from a local farmshop.
Next Sunday our grandson is having a birthday party, so parents, grandparents, great-grandparents, uncles, aunties, great-uncle and great-aunt plus cousins keeps us just under the magic number of thirty. And yes, I'll supply the cake, salads, pickles, a pasta dish and elderflower cordial, my son will bring ice cream and make pizzas, my other son will provide crisps and dips and the others will bring wine and whatever else they think will fit the bill.