Instead of Exoskeleton, you could use Fattener by geometry god @DanielPiker.
Here’s how it practically works:
Basically you have a line graph and place spheres with a desired radius on the unique end points. The sphere radius then defines the thichness of the mesh at each knot.
I believe there’s also a new way with SubDiv in Rhino 7 beta, which can do something similiar, but maybe not with varying radii.