There are a few threads on using dynamic cloth over at the DAZ carrara forum. You can save the cloth as a pose in the P7 library. I am still getting up to speed on that myself.
As to a morphed V4: no problem, so long as you have her saved in your P7 figures library as a "full body morph" independent character, she will load up fine in C6.
After getting my morphed V4 into C6 and fixing the textures, I loaded her into "my objects" in the C6 browser. From there, no need to save any scenes, just drag and drop the character.