I don't have Daz Studio, so I can only help on the Blender end of things. I won't waste your time any further but I'm just curious if you tested the FBX export/import format? FBX can retain rigging and morphs/blend shapes. However, the rigs will almost always need to be adjusted or modified to work as they did in the host application.

______________________________________

My Store
My Free Models
My Video Tutorials
My CG Animations
Instagram: @luxxeon3d
Facebook: https://www.facebook.com/luxxeon