To answer your question, it does not matter. The same amount of material has to be removed, if you breadknife or hone at a raised angle.

If you breadknife, do not completely remove the chip. With a diamond plate, remove down to the chip, leaving a bit. Then, complete the removal while bringing the bevels closer together, honing at a high angle, spine off the stone, then tape and set the bevel on a 1k.

Of course it can be honed, should you should do it?

It depends on your skills and tools on hand. If this is your first restore, you may take advice given and wait for more experience or send it out, because of the level of damage and the potential for restoration.

Nice find, welcome to the forum.