I've see this for sale a couple of times and have a question about its size. How tall is the blue "powered" Convoy before he becomes Ultra Magnus? I like the "blue" color and always wanted one. But if I'm going to pay big $$$ to have one, I want to know its size compared to the regular G1 Convoy (AKA: Optimus Prime, etc.) 2nd, was there ever a Blue Convoy released by itself? So far, the only one I've seen comes with the Diaclone Ultra Magnus released as a limited edition in 2001? I also always wanted a blue Convoy/Optimus too and this is the only toy I've ever seen it in this color format. Any additional information on this/these toys would be greatly appreciated. Thanks in advance.