An easy way on the 67 with carbon brakes C or D is to calculate the total brake energy for brake on elevation, speed and weight.
There is a magic value of 40 millions ftlbs. Above you are in the caution zone below you are fine. Your source is the turnaround calculation and shows perfectly brake temperature for a given condition.
Compare the full brake distance with a certain AB distance and calculate from the normal landing table your distance required. This gives you the proper setting for distance available.
In other words look at the distance available select the proper autobrake setting from the table and as a example with 140 tons you are fine with AB 2.
Of course reverse thrust is of great value if it comes to brake temperature it is well shown in the brake energy table.
KTM is not a problem on this bird for the brakes, it is the missing runway end covered by a crookback shape. Most gys stop after 1/2 of the runway available......
best regards
