Quote for rendering

Rural south of England, I need approximately 50m² of exterior garden wall stripped of its render completely to brick and re rendered with lime and cement mix

Quoted 6500£

This is for:

Strip, brick work replacement, helli bar system where needed, 2 coat render system, incorporated inhibitor and waterproofer. Rubbish removal included

There is no reason, that I know, to believe the brick wall itself under the render is in bad state. Is this quote decent? It's my first time ever using a trader.

Should I ask for a split quote in case the brickwork is in good state? I feel like it wouldn't make sense to pay for for something we don't know it's broken. If it is then obviously I would pay for it to be repaired