That could be done with primitives but the boolean requirements would lead to a really messy workspace. Something like that is easier done in a high end modeling program with champher tools. Something like Electric Image Universe or Rhino or Lightwave could do that. Maybe even TS but I don't know for sure. I will say that the curves are too compound to be simple bryce boolean unless someone had dozens of booleans in there. A champher would be the faster cleaner way.