I'm curious on the Bed Knife Buddy.
It looks like a thick kitchen knife sharpener, just a single balde out of those stay sharp knives, that scrap the edge in a V fashion.
I'd assume that this is done by hand only!!!
Might look for one in AU, or attempt to make one.
My neighbour brought his reel down to me and asked me to 'just throw it on your lathe and skim it'.
My Dad being a machinist - I knew better and tried to explain the results if it were to ever be attempted.
I put it back in his 45 and mildly dressed it with a Oiled Oil Stone and told him to buy a new Bed Knife.
Poor fella doesn't like to maintain things, but that's the thing with Reel Mowers. there's always something that need checking and tending to.
