Patched surface from 2D landscape plan

Hey folks, I have a question about generating topography surfaces out of 2D-landscape plans.

I have a 2D-dwg file of a landscape plan with Xs (single crossed lines that show the location of the points) and a text object next to them which describes their height. I’d like to get a patched srf out of them but first I need to move them to their correct z-location. I’m stuck at connecting the values of the text objects to values I can use for a move component. Have you done that before?
Or is there a plug-in that can do the trick?

Thank you!!