In the late 70s my folks built a "rabbit barn" which was/is about 16'x50'. They/we built cages which hung the length of both long walls with a double cage going down the middle. The male was kept outside in his own cage.
At the time several people had started raising. A semi would come on Sat to the local high school to buy your rabbits. When we started the feed cost was low, the wire and other supplies were affordable, and the buyer paid a decent price. Within 2-3 years, local suppliers (namely Farmer's Coop) raised feed and wire prices and the folks bringing the trucks kept lowering the buying price of meat.
I remember feeding/watering mamas and having a lot of cuddly babies. The meat was excellent.
I don't think you will have trouble selling as many as you can raise. However, being able to sell them at a profit might take developing a niche market (Organic, pink and purple, etc)