I'm making my own cases. Not as pretty as the old bentwood cases but they'll be functional, probably more like the typical cases from the 50s and 60s before they went to plastic.. If I know the clearance past the handwheel it'll be easy to add a bit more so they fit.
I haven't posted pics yet (maybe this evening) but I picked up my $5.00 Singer 66 yesterday. That's one of the ones that's getting a crank.
Rodney