Starting from scratch on red clay
North Texas. Have about 12-15,000 sq ft of red clay dirt that originated from swimming pool and aerobic septic holes (3-12' deep). Red clay dirt was spread in front and back yards to level up the yard (about 100 yards of dirt). Want to go organic, leaning toward bermuda simply for durability; plus, acre lot so can't really irrigate whole thing. Question: Should I haul in topsoil to amend clay soil, or perhaps haul in compost and till in. Likely also put out 25# alfalfa pellets/1,000. Any help appreciated. I've always had much smaller lots so trial and error was pretty inexpensive and easy to do. This involves renting a tractor/bobcat to get done. Thanks.