Does anyone have some 32H, alloy, aero tubular rims kicking around? 36H would probably work too.
On the subject of forks and geometry: any fork that is within range will probably feel fine. Rider input will adapt. I've tried everything with forks and wheel sizes and after the first ride, I always found that I adapted. Many of the older forks are longer than current forks. Tandem forks tend to be longer than road forks and cyclocross forks are even longer. But when you consider that every time you change tires sizes or even inflation pressures, a bike geometry changes.
Jim Cushing-murray
Frisco CO (snowed yesterday)