What I would find useful is if someone could list the critical editions or even editions made from multiple manuscripts of Puranas.
Harry Spier
There is a large Epics and Puranas bibliography: _Epic and purāṇic bibliography : up to 1985_ (in 2 vols.) ed. by Heinrich von Stietencron et al., comprising more than 2000 pages. See the entry on WorldCat: <http://www.worldcat.org/oclc/419980809>.