I think the defenders we currently have available will actually match up well on GC.
Smith will be a good matchup on Chol, Tomlinson will probably take Casboult, Hunt to Lukosius and I would play May on Rankine.
Rankine is definitely the one forward they have who can go nuts, and we know May can definitely play mid size. It will also allow May to play as a third man up.
I doubt very much we risk Lever unless he is 110% right to go.