I am in the process of building a full size pickleball court/tennis practice backboard on my existing driveway pouring 1500 sq feet of concrete by myself and the whole project will cost around $3000. It is exhausting labor using a harbor freight mixer only mixing two 60 lb bags at a time that I started in September trying to do 5x10 slab a week. I have half done, taking a break and having fun with it doing pickleball practice with a ball machine on the unfinished side. I already had the material for the fence, lights and backboard and am using a portable net. Pouring flat concrete is difficult and mine will be uneven, sloping with some bad bounces but good enough for practice and great for the convenience. Later on I could have pros lay asphalt on top if I really need a flat court. I believe most public courts are asphalt which is less expensive. My 65 year old concrete driveway doesn't have rebar or major cracks.