G'day I just bought a 450S then I saw the 450 HDX it's not Align but it looks at least as good if not better so I checked it out here

http://www.trextuning.com/HD%20V2%20Frame.php

After seeing this flight test & build report I bought one of them as well, Looks like the equivalent to the V2 (got it on ebay for $153.00 metal head tail and carbon body Couldn't let someone else buy it!) so now I have 2 in the mail one of each