There are 4 Space: 1999 Eagle models out there that I've seen, but mine was the first. I haven't worked on it in a while, since Marc and Keith released a much more detailed one. Mine was intended to be a quicker build, anyway, but I was never quite satisfied with it, especially the "beak". After the modular space Eagle came out, I played around with rescaling the beak from theirs, and found that it fits mine when reduced to 60%. Theirs is based on "Eagle 1", mine on "Eagle 2", but the beaks are basically the same for both. The results of the kitbash can be seen in my gallery, "Scott K's Stuff." Scott K.