Specifying individual data values in a list + correcting data paths

Hello everyone,

I'm struggling with this gh script i'm working on- I want to give different overhang angles to different building facades. My problem is that the facades are in a branch of their buildings, but I want to group two facades on either side of a street (so they have the same overhang, controlled manually by a slider). I've done this using point proximity to manually placed and referenced points, and then linked the closest referenced point 'number' to numbered sliders to control the overhang value.

However the overhang value does not match up with the correct facade. I've tried to get the data paths of the overhang values to match those of the facades (which they appear to do) but still does not work and I am completely out of ideas...

any help would be much appreciated, and sorry if its badly explained. I have attached the gh file below.

Thanks
Tom