Rotating Elevation Markers

Hi all, I know this topic has been asked a lot, but all the answers I come across assume a level of Python knowledge that I don’t currently have, and surely this can’t be so complicated that it can’t be handled by native Dynamo nodes?

I’m tackling the age old task of generating room elevations, and have gotten as far as generating elevations per wall, and calculating the required rotation angle. I just can’t seem to rotate the elevation marker or body.

What are my next steps?