With 582 hp you have more than enough power to start in high gear. I have ran drag radials since they came out and had great sucess with just simply rolling through the water then stabbing the throttle in high gear (if you have a manual valve body). It doesn't take time just wheel speed. I have had many 1.32 60fts @ 4000lbs with 295 65 15.

Your air pressure is in the ball park.

Oh ya glue with 3M weather adhesive. No screws in mine!