How is this coming along?
My solution is a large extra extra coarse DMT...
not the DMT most ideal for lapping water stones.
Another solution is loose grit on steel or glass.
Common sand and water on a sidewalk can also work
especially if a bit of the sidewalk needs to be scratched down.
If the hone has a big dip to grind away...
In the hardware store you will find big old
carborundum blocks in the cement and tile finishing
section. Called a rubbing stone by some
some are as coarse as 24 grit.
Home depot here has a: QEP Dual Grit Sanding and Rubbing
Stone for Smoothing Rough Edges of Cut Tiles.
One side is 60 grit the other side is 80 grit.
I have seen them much larger from time to time.
The new ones are flat enough
With a good eye you can get the Arky close enough to
finish with less abusive and coarse material.
Good to bevel the corners of other hones once you
get the feel of it.
And yes power tools... like a rented belt sander are
quick. Like any power tool -- be cautious.