Parametric Surface Deformation Using Grasshopper?

I‘m a researcher at a lab, we design prosthetics that help people with foot injuries walk. Our process involves 3D scanning patients‘ legs and processing the scans in Rhino, including adding 'releases‘ which help alleviate painful pressure points.

Our current process includes converting the scan to SubD, splitting the surface, offsetting it using OffsetSrf, and then BlendSrf. It‘s a rather finicky, time consuming process, which means it takes more time to help our patients.
Would it be possible to add these bumps parametrically using something like Grasshopper? A brief search brings up Lunchbox or Pufferfish but they don‘t seem just right.
Any ideas would be much appreciated!

Are you aware of shrinkwrap?

I wasn‘t. It seems like it could be part of the puzzle though i‘m not quite sure yet, I‘ll have to experiment.

I wonder if i could create the ‘releases’ in grasshopper as separate objects then shrinkwrap and quad remesh