There's a thread in the forums at DAZ (don't have the link ready) about using multiple runtimes. You don't have to install the DAZ people in the main runtime. You might have to copy the !DAZ folder over to the main runtime though. That's the short of it. So yes, you can have separate runtimes for your figures.

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

My gallery   My freestuff