As reported on this blog the online library of Liberty has started the process of publishing large swathes of Leveller writings in digital form.
David M. Hart has now put on “Tracts on Liberty by the Levellers and their Critics Vol. 3 (1646)”.  in eBook form.
More will follow in 2016.
The link is http://oll.libertyfund.org/titles/hart-tracts-on-liberty-by-the-levellers-and-their-critics-vol-3-1646