if skarmory can do it, why not Rhyperior? Its typing isnt as great, but it is still a physical wall nonetheless. Rhyperior has even better HP than Skarm. Just a thought...
Rhyperior @ Leftovers
Nature: Impish (+Def -SAtk)/Jolly (+Spd -SAtk)
Trait: Solid Rock
EVs: 252 HP, 252 Def, 4 Spd/Atk
-Roar
-Stealth Rock
-Earthquake
-Stone Edge
Cause Skarm can also Roost.
Basically, RHY is either a sweeper that can wall (CBer), or a Wall that can attack (ResTalk).
SRock is always a good option if you don't have someone else that can already SR...but if you want a SR + Phazer, Swampert or Skarm do the job better.