Drawing takes about 55 minutes to max 5 hours
(but when I  draw it feels like only 1 hour has passed even though I am busy for 5 hours.. Time flies !!!)

Rendering with Poser 7 about the same, with a max of 12 hours once I think

Poser 6 had render times of over 2 days sometimes.

It is the Volumetric light that makes it last for ever :)

-=-

on the second question, what I have in mind I can make with Poser.
so no frustration.. sometimes amazement as it even get's better than I hoped for