How do I create camera-facing labels with lines pointing to fixed 3d model parts?

Hello, I’m looking into how I could create in ue5 floating lables with text and arrows/lines pointing to parts of a 3d car model like on-screen labels (or floating labels, I’m fine either way) with a line pointing to the component “hood” or “trunk” that remain readable though when I turn the model around and the arrows/lines keep pointing to the right car part.

Since this could be easier to explain with an image, here’s my attempt:

Thanks for any help.

The sign is not too bad, that’s a widget component

The line is more of a pain. You basically have to make a ribbon particle ( just one ), and set the start and end points. This example is from Cascade, but Niagara would be very similar