The BladeForums.com 2024 Traditional Knife is available! Price is $250 ea (shipped within CONUS).
Order here: https://www.bladeforums.com/help/2024-traditional/
What do they want to do?
Rebevel? Touchup? Just kitchen knives? Lawnmower blades? Ice skates? Barber's scissors? Straight razors? Chainsaws? Buzzsaws? Jigsaws?
More information required.
Wait a sec... are you talking about the electric "Chef's Choice" sharpeners, or the manual Edge Pro? The model numbers look like Chef's Choice. If that's the case, I can't help you as I know jack-all about electric sharpening. On the other hand, if you want to buy them something easy to use and effective, take a peek at the Spyderco Sharpmaker. Works fine for maintaining edges.