Don't forget your local retired barber.
I just checked with mine and of course those guys keep cutting a little hair for mad money and all. I was quite disappointed as i chit-chatted with his patron when he whipped out a insert-bladed SR for the trimming up part of the job.
But I stuck around until it was appropriate to inquire about maybe him having a hone so i could fix up my old blade. Told him 'bout all the new old and new new guys taking up manly shaving. How i never knew how to shave for all them other years.
And eventually he offers to dig me out a hone when he can get 'round to it, that it's all packed up from the move. He warns me of over-honing (rolling the edge) and how to fix it.
I'm going back next week to see what he digs out!
Moral of the story-disposable SR's make antiques available yo. Wish me luck.