Hey Mo!
Yeah, sculpting in wood is a good way to put it. This is indeed centerline square rule valley work, based off of shops I generated from a SU model, which was based off of existing blueprints. The shops for this system were 19 pages of spaghetti, and then everything had to be laid out mirrored, too.
The first common rafter centerline is 3' away from the centerline of the gable ridge.
I always thought we would set the system up in space, once I had cut the ridge connections, if only to just double check the locations of the common rafter mortices, before cutting, as valley errors get big in a hurry.
Someone in the shop, who shall remain nameless, threw the gauntlet down by saying that I was crazy to not lay everything out in space and scribe the common rafter mortices, so that just made me say, "f$%# it, trust my shops, don't be scared, and cut it to math." Everything seems to plane and measure correctly, but I won't know for sure for a couple more weeks when it gets installed.
Between the shops, the milling, and the fabrication, the whole thing probably took 70 man hours.
I am exporting a quick video of the system to make things a little easier to visualize. Once I get it on Youtube, I'll cross link to here. I have a bunch of videos and such on my Facebook Page; you should check it out!
OTB Designworks Cheers, Chuck