Gang: your kind words are much appreciated!
It's not all that hard to do. Get some good reference material and if at all possible, some decent 3-view drawings. Rescale the model. Then, figure out how to replace everything on the model that is printed in 2D with 3D. (My model railroading buddies refer to this as "Creative Gizmology".
Sure, there are mistakes:
My road wheels are a little too small for a PT-76 drive train. (They were turned out of wood dowels with a Dremel). And I'd build the transport cradle out of styrene tube next time, for a finer effect. I've left off the pioneer tools, too.
But hey, this is only my 4th card armour build. The point is (as I tell my carving students) to finish each piece and build upon the lessons that it teaches. A lot was learned here, from the rest of you!
Jim