I'll also give my pragmatism a slogan: "It's just a model."

In what aspect is your idea of pragmatism supposed to differ from general semantics with the slogan "The map is not the territory"? How about reading Science and Sanity and seeing whether that's the philosophy that you are looking for?

Instead I mean that I don't even think that the truth is a useful or coherent concept when stretched to accommodate what philosophers have tried to make it accommodate.

That's a claim about ontology not a claim about epistemology. When it comes to modern source I consider Barry Smith worth reading. He's doing practical ontology for bioinformatical problems.