Yeri,
23C (73.4F) is a little high. You should air dry around 18-20C until dry to the touch and then move it into your "cave" at around 12C for aging.
Your yield depends on several factors, but the quality of your milk is most important. You will get more yield from raw milk. In general you will get a little less than a pound per gallon. So you should get around 2.75 pounds.