Gene Klein, president of the San Diego Chargers, says his club is financing the installation of 30 sky boxes which seat 10 to 30 and are designed to sell at $18,000 to $20,000 a box.

The Chargers are opposed to the Oakland Raiders' proposed move to Los Angeles for the understandable reason that at least one team will already be within 125 miles in 1980: the Rams, in Anaheim.

The Chargers say they are "paying" for winning the AFC West title; they will play the Redskins, Dallas and Miami on the road and Pittsburgh and Philadelphia at home.

And they will have no picks in the first three rounds of the draft, having given up a No. 1 choice for defensive back Willie Buchanon, a No. 2 to get tight end Kellen Winslow and a No. 3 for Coach Don Coryell (to St. Louis).

Running backs John Cappelletti and Lawrence McCutcheon of the Rams are available for trades, though McCutcheon threw a halfback option pass for a touchdown in the Super Bowl against Pittsburgh.

The Baltimore Colts are showing no interest in option-playcuts Jean Fugett, Otis Sistrunk and Paul Krause; nor are they interested in whether Thomas (Hollywood) Henderson or Ed (Too Tall) Jones is available. Baltimore is looking for a wide receiver, a running back and offensive tackle, but will depend on the draft.

The Raiders want a short-term lease, whether they stay in Oakland or shift to Los Angeles.

The Rams had a 9-7 regular-season record, the same as New England, Cleveland, Oakland and Seattle, who will draft, respectively, 14th, 15th, 16th and 17th in the first round. Due to a new rule applying to the 10 teams making the playoffs, the Rams will draft 27th instead of 18th after losing in the Super Bowl; the Steelers 28th.

Mike Kruczek, the Steelers' No. 2 quarterback, is among those happy that Terry Bradshaw is promising to retire after two more seasons. Kruczek is confident he can do the job. "Bradshaw is the best quarterback in the league" he says," and I think I am next best."

The New York teams are boasting about keeping their players as residents of the metropolitan area, the Jets with 16, the Giants with 25. Giant Coach Ray Perkins accompanied quarterback Phil Simms and tight end Gary Shirk to testimonial affairs this week at Morehead (Ky.) State college. The visit is expected to boost local sales of T-shirts inscribed, "You Too Can Have a Career in the NFL." Simms and Shirk are the only two Morehead grads to make the NFL.