Lime and fertilizer are going to play a huge roll in establishing almost any grass, then there's the matter of keeping a little moisture for it during the hot summer months, at least the first year, because your clay does not absorb and hold moisture well.
After fertilizing and lime I am going to try a good seeding of rye grass for cover and then add some vetch for permanent ground cover, a mixture of hairy and crown vetch, have had really great luck with this in the past here in MO. hate fescue but it does make great cover too.
