I'd still upload the Poser bits anyway, especially the older stuff. Anything for Poser made before 2014 or so will work perfectly fine in DAZ Studio as-is.
It's only when you get to stuff made for Poser versions newer than Poser2014 that you find issues (Erogenesis' Evolution One for example is a brilliant Poser adaptation of one of DAZ' best figures, but its heavy reliance on Python and Poser's internal weight-mapping combines to make it unusable in DAZ Studio.)