Hopefully someone will say I'm wrong. but as far as I know getting the rigging from blender to Daz wont work!! at the moment, am sure someone is working on plugins etc but at the mo' its a nono

Carrara dosn't need a bridge lol it opens a runtime ok makes landscapes an can model but not very well lol never did like its modeler but thats just me , ps you can rig in carrara but that wont transfer to Daz or poser

Now I get a problem with what your saying?, when you say soft body do you mean soft body or organic ?? then you say you dont need weight mapping so that sugests things like doors/drawers or machines (hard body? lol) thats easy to do in poser(never tried in Daz) but imagine it should be a similar process, but no point me trying to help if we are thinking dif things