I have not been able to get boiling fowl in my locality for at least twenty years. If you can get them (they are old laying hens who have come to the end of their day. Tough, fibrous and FULL of flavour), you will have enough difficulty preparing them.
If you still have enough energy left, make a french onion soup as a starter, serve with the best approximation you can find for real french bread in your locality.
You can serve the coq with boiled potataoes, or rice and a simple green vegetable.
A fruit salad to follow, or if the budget allows, some REAL cheese.
Check out the religion too. MOST will eat chicken.