I just bought a beautiful '73 25 Ericson and a few things you might want to add to your list,
The mast step condition,
The centerboard lifting tackle,
The stern (transom) if outboard powered,
The chainpates and bulkhead under them,
The ports and windows for leakage,
The battery platform,
The anchor storage area for damage,
The grounding cables,
The sink drain,
The deck under the stanchions.
A good surveyor will should catch all of these, but they are items that could cause you expense/time getting repaired.
I hope you find the 25 in good enough condition to purchase as they are great little boats and will designed and constructed.
Brian Lowman
S/V Gypsy Rose