One question and one suggestion. Is the bike 120 OLD? Mine was set at 123 so that you could go with 120 OLD or 126 OLD wheels and that was, AFAIK, fairly common in Treks of that era.

The suggestion is that if you're OK with mixing up the dura ace build a bit, you could hunt down a SR Apex 86 bcd crank which will let you run, in effect, a "compact" crank. I like running 48/34 rings with a 13-26 freewheel. New 86 bcd chainrings are available from SPA cycles in the UK. Alternatively find a 110 bcd triple (say the shimano 600 triple) and run it is a double. YMMV of course.

https://velobase.com/ViewComponent.aspx?ID=2c2ad4ff-698b-4e99-912b-434209b794e2&Enum=115

https://velobase.com/ViewComponent.aspx?ID=f6e74fd2-417d-4154-a7c2-af9e1392a018&Enum=115