Thanks guys. I just noticed that almost all of the Amfleets asked and built for Trainz are Amfleet Is. It would seem that no one cares, at least not as vocally, for the Amfleet IIs. I was thinking about rectifying this.
Go for it. I think it's more of a case that Amfleets are so scarce that people just wanted anything, especially ones that work in later versions of Trainz.