Yesterday I went to a shop of re-vamped bikes; no luck. The fellow there suggested I try a small bike (20" or 24") -- for the sake of stability (getting on and off). I am 5'2". My height is not in my legs, and my weight is all around the middle -- and so getting on a 26" bike (the usual size for folks my height) is a bit of a feat.
This may be the interim solution. What do you think?