I'd go with the 154, but the 57 would work fine. Proto.
FWIW lined my Proto up with the old profile Evo (non-blunted, still RC). My 54 had matching contact points as the 58 Evo (extended rail length, blunted tips).
A blunted Proto or Evo is not the same in CM for comparison with other boards IMO.
is it late october yet?