Can I do anything with this gas fireplace? No gas service
The advice your home inspector gave you is ridiculous and he should have his license revoked. Either a flue is safe to use with wood, or it is not. Get a good chimney cleaning company that also inspects flues to clean it well first and run a camera down the length looking for any problems that might need attention and assure you it is safe for a wood fire.  Don't guess at this or just try a "small" fire before getting a real inspection.  Better safe than sorry.