Having done that very same step just yesterday I came up with using
Code:
{series_index:0>5.2f|| - }{title}
for the title as described in the first post on this thread (I do use the fraction part of the series index, else the series_index:0>3s as described there would have been sufficient).
However, every collection's sort order is 'Recent' by default and has to be switched to 'Title' manually.
@davidfor
Your post suggests that that is a function of the Kobo plugin and not of the device. Have I understood you correctly? If so, can that be made (or is it already) a plugin option?