Frame appears in very nice shape.
yes, components have been updated, at one point this was just an out of date racing bike.
the changes can be undone.
parts value recoup is there, cost for alternative 7400 series parts not a big spend unless one needs "new" appearing.
probably a 55 center to top.
I ask appears reasonable.
I have too many bikes including one Tesch S-22. Built for speed they are.