If the dtp/model are in the right place, you should see "MirandaClass" on the patch list in the Project Sicario window. If you don't see that, it might be mod incompatibility? If MirandaClass is in the patch list and the model is in ~mods and the model still isn't visible, try re-running PSM (also worth noting is that its not always visible in the default hangar camera view but letting the camera move a bit should reveal one of the ship's parts).
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edit: nevermind