So far, this thing has been crazy!  There are a lot of pipes!  I'm adding little details now and doing a lot tweaking.  Several of the textures need to be changed and some of the proportions of a few things need to dialed.  I'm into the macro level details (railings, handles, ladders, edges).  None of that was really in the original but a more detailed render kind demands it.

I would guess I have about 40 hours in on it so far.  Another 10 and it should be good to go.

-Kix