Oh, DEFINITELY AGREED.
The MSM (main missile assembly) for the Lance (MGM-52) was the same, regardless of the warhead type. Very little difference in launch procedure, as the only changes were there to accomodate two-man control and nuclear surity.
The nuke warhead (W-70) was lighter, giving that variation much greater range.
Even a turd-world nation could ultimately create an initial nuke design capable of being duck-taped onto a Scud body.