Thanks, guys. I'm glad you like it so far. It's been a pretty nice build, but I have a twist in the frame that I haven't been able to get out. You can't really see it in the pics, but the radiator is at an angle to the frame. Not exactly sure how I'm going to fix that.
Sergey: the Mack filter decals are made by Scale Truck Detail Studios. You can get them from SourKraut or from Model Truckin' (Mack Filter Decals)
Rick: yes, those are the Mack spokes that Daniel sells in the package (wheels, square tanks, etc), but I only bought the wheels from him. Didn't need the square tanks for this build. I think AITM sells Mack wheels as well, but they come with a tire on them.