The reflected sound of the engines is enough to destroy the engines, ironically. That's also why the launch mount is so high. You'd need truly enormous legs, which wouldn't work for weight.
The load for landing and almost empty booster would be less, but otherwise yes, it would be much more than the single Merlin engine on the Falcon 9, with all associated issues (local scorching/spalling of the pad, acoustic issues, extra weight, longer turnaround, etc.).
