Spokes won't work, but thanks, Mr. C.
I have a set of Ksyrium Elites I offered the guy if he didn't think he could find a spoke and nipple.
He declined.
For some reason, these are more silver/grey than polished, and very wide.
Beefy, even.
He took the wheel to a shop; they used the plastic Mavic tool on the nipple, and of course, ground it off, then used a lineman's pliers, and of course, ruined it.
I don't think the spoke looks that bad, but he's definitely gonna need a nipple.
As for the rings, he really needs to go new.... 14 years on the front ring...and it's literally razor-sharp where the formerly tooth-shaped protrusions are.
I told him I'd look at my cassettes. Fortunately, the freehub on that Mavic is splined 1mm... I used to love DA cassettes; now they are short of teeth!
I'll update in a few days.