Well, I built two prototypes from those first casts from the final master patterns and laid the pipe work (which was modified a slight bit in two areas to avoid certain breakage in shipping). Both prototypes I built were given the stamp of approval by all parties involved - and yes, it was basically the Red "radar jammer" configuration but with an Artoo in the socket. I painted the body color and markings - basically just the base coats, and then handed both of them off to MR the last week of September, as I was getting married October 1st. Where are my priorities?.
That's where my involvement on the Ys ended, so I don't have any definitive answers about weathering, final part configurations between those first protoypes and what shipped, or what color the Artoo is. I believe the final decision was to have the Artoo be the blue fella with the red neck stripe, and the cockpit would have the blue canopy with the two body color stripes. Of course, that could have changed any number of times in the past 9 months.
Last time I was at MR, I saw a test shot from the factory, and it was consistant with what I had sent, as far as markings and paint scheme. So the red Artoo is a surprise to me - but again, there were many Ys in the film, so there's a certain amount of flexibility, conceptually.
I believe the best things about this replica are still not mentioned much - the t-Track is metal, the wings are MACHINED metal (yeah - crazy cool.), and the piping is now metal as well, I think. Nose cannons are probably machined metal - but I haven't seen this personally.
I'm really happy that the laser tower is a seperate piece too. I'll display mine without the cannon, as I think it distracts the eyes from the sleekness that is the Y-Wing fighter.
And as everyone has said a thousand times with every studio scale replica - the factory paint job will satisfy most collectors, but will never match the artistry of a Steve the Swede or Dan S, who will obsess over every nook and cranny to really replicate what ILM did - it's far too time intensive a process to expect out of anything manufactured in quantity. I'll probably repaint mine when the mood strikes, but I said that about my AT-AT, and it's still got it's factory deco, lol.