Pina F10- hydro routing Q

[sfo1]

I am looking at the rear hydro routing; I have a GXP BB (using tube) and was wondering if its easiest to route (hydro line) up over the BB tube into the top shell port (then push forward up the down tube) vs. the front or down tube port. The down tube port seems pretty well blocked by the BB tube.

I also seem to be missing a cable guide for the non-drive side. The one I have to use has two cable holes and I was hoping for a guide with a single hole. I've seen them in the wild. Anyone know where to purchase one-off (vs. the whole widget kit)?