Structural Engineer costs: Am I being gouged? We are combining a kitchen, living room and dining room into a 900sqft great room and also vaulting the ceilings.  Architect already drew up the plans for everything for $3500.  

Before linking up with a contractor, we need a structural engineer to sign off on everything, espcially due to the vaulting of the ceilings which requires a new beam at the top of the roof.  His quote for the drawings and calcs required for submission to the city was $3750.

This seems steep to me, especially considering the architect already drew up the plans.  Does this sound about right?  Thanks