You only need the complete top of the HS. Put up a WTB in the C&V for sale forum and see what shows up. The tops, unlike the bottoms, don't tend to go bad so it wouldn't surprise me if something pops up. If you get a HS without the toothed washer that should solve your stack height problem but you will want some measurements before buying. If there is a bike co-op nearby, you might check that as well. The downside is that toothed washer design is very common for French headsets.
VO has a reasonably priced French threaded headset at $32 so if the stack height works, $32 plus shipping is the most you'll pay.
Last edited by bikemig; 08-10-23 at 05:07 AM.