Assuming that the teeing area returns to the same spot once each month, you'll need about 150 to 300 feet for teeing areas. That all adds up to a minimum of 370 yards of length. Ideally, the length should be oriented on a north-south line, so prevailing winds don't exaggerate a hitter's skill or ineptitude, and so hitters can watch their balls without burning their retinas at sunrise or sunset. You may also decide to build individual teeing stations. Landscape timbers may be best for defining such stations.
Turf care is, of course, a nonstop headache on a practice tee.
Every day, yesterday's divots should be seeded with perennial ryegrass, topdressed and fertilized in cool-season regions. Where bermudagrass thrives, divot repair can be no more complicated than topdressing and spreading a half pound of nitrogen per 1,000 square feet once a week. Frequent irrigation is crucial on newly seeded areas. On the range, you can possibly use more organic fertilizer than you could on, say, a green or a tee on the course, where golfers' expectations are higher. Many companies offer artificial grass for teeing stations.