Well, eBay currently has two McCauley props for sale, both are "for display only". One is asking $200 and the other $400. Both are obviously un-airworthy. Assuming the paperwork for this particular prop checks out and it's truly repaired (not simply "repairable"), I would think it's worth more than that. Maybe $1000? At least, that's what I would've paid a month ago....
The safe buyer would want the prop checked again to make sure nothing was tweaked during storage (fell off the shelf, something dropped or spilled, that sort of thing). That could run another $400-$500.
Now you're up to $1500 on a used propeller. Get close to $2K and people will figure 'just buy new' and not have any worries or questions. At least, that's what I did a month ago....
