Wow couple of punchy replies here not being very helpful.
FFS, Someone wants to into their family to venison. Do you really think roadkill is the best start?
If no one local sticks their hand up and offers you a carcass on here, then couple of suggestions
Jim Riley at DVGM Chippenham might well sell you a carcass whole. Very professional deer larder set up you could probably have a look round and see and it might make your family happier. They also do butchery courses there so there are times when there may be lots of spare prepped meat
Join the Giving up the game Facebook group (national one and lots of local ones)
People advertise their shot game for sale. Sometimes butchered boxes other times while in fur or not
Would suggest burgers, stir fry, spaghetti Bolognese etc as the easy entries transition from beef rather than traditional very rare loin steaks