Scanned Page Processing Script

[Gimpy222]

I have hundreds of scanned pages from a large 100 year old book that need sized consistently. I'm using Gimp 2.8.10

Currently I select the portion of the page left to right that has text and the very edge of the page top and bottom.

I then select grow by 250 pixels

then crop to selection

then canvas size 2000 px by 3300 px, CENTERED

then mode grayscale

then levels 50, .5, 200

the result is exactly what I need

I don't know anything about writing scripts. Can this all be done with a single click after the selection is made? If so, how?

Thanks Sandy