I would appreciate one last review of my plumbing layout.
Thank you for your previous comments.
Some changes are:
By repositioning the kitchen sink slightly, I was able to keep the trap arm within the max 60" length. And was able to keep the vent size 2" by locating it on the other
side of the wall in the pantry room (not ideal, but will not be too noticable behind shelving).
The bath sink, of course, is actually on the other side of the vertical 2", in the bathroom by the toilet.
I decided to go through the roof afterall with the main vent, right next to the ridge.
On the tub, I will put the trap within the floor joists; even though the crawlspace
is open, the insulation between the joists should keep it from freezing (I'm in
Arkansas, so it shouldn't be a problem).
The clean outs are marked C.O. and the one at the end of the main 3" line as well as the double clean out will be outside the perimeter of the crawlspace.
Do you see anything that might give me problems ?