Can someone give me an idea on what it may cost for an indie to repair/replace a head gasket for my '92 300 CE and what may be involved so I don't get bamboozled and I know what I am talking about when I talk to an indie?

Maybe someone can give me an idea of some of the parts involved and/or valve job at same time? Does it need it or??

__________________
Norm K.
'97 E420 Sport
'06 E350 Sedan
'67 Mustang Coupe
'70 F-250
'15 VW Jetta