Idle back of envelope sums:
Steve's miles to date : 22279
That's more or less at the end of May
Looking at his published schedules, going with the 82835 first, June to December is scheduled to be 52285. Add that to the mileage so far gives 74564, which is a shade under the 75065.
If we use the figures from the higher 87129 schedule, June to September is 54480. Add the mileage so far takes us to 76759.
Have I missed anything?