I have just completed a project to convert an old and scruffy SCCS working tree to Git. This conversion involved a fair amount of toolsmithing.
I have published my conversion scripts at https://git.csx.cam.ac.uk/x/ucs/ipreg/sccs2rcs2cvs2git.git
And there is a report on the conversion process at https://git.csx.cam.ac.uk/x/ucs/ipreg/sccs2rcs2cvs2git.git/blob_plain/HEAD:/ABOUT.html
Tony.
-- f.anthony.n.finch <dot@dotat.at> http://dotat.at/ Dogger, Fisher, German Bight: Southeasterly 5 to 7, but 4 at first in west Dogger, occasionally gale 8 in Fisher and later in German Bight. Moderate or rough. Rain at times. Moderate or good, occasionally poor.