Galvanized steel plumbing from 1954 is a disaster waiting to happen. Some insurance companies will not insure a house with galvanized steel plumbing.

Plan on replacing it straight away. Doing it properly will involve breaking into the walls. How ugly that becomes for bathtubs and shower enclosures is a matter of whether you can come at it from the back side of the wall. (What’s in the other room?)

Most general property inspectors will specifically exclude any examination of pest control issues, because traditionally lenders require such inspections to be done separately by a specialist.

If the electrical and HVAC have not been recently replaced to modern standards, the inspector will simply say that its not to modern standards, and suggest that a specialist be consulted. Either area could harbor safety hazards by modern standards, and general property inspectors are not the right people to assess them.

A 1954 stem wall foundation in LA region (serious earthquake country) should receive a close inspection by a foundation specialist.

A house priced at market will sell in a week or two if listed in the MLS. That is the definition of market price. If it takes longer than that, the seller is indeed waiting for a “special” buyer to pay more than current market price, or, alternatively, waiting for the market to improve.