Re: Vehicle Design Philosophy

I would expect that the Armorcast and Epicast Tyranid bio-constructs
from
GW's WH40K would make good Sa'vasku bioconstructs in the interim (and
neatly
available in 6mm and something close to 25mm).

I would also think the Kryomek vehicles (from the game of the same name)
might make passable small Phalon vehicles.  They're clearly organic
technology, but shaped like human constructs and implying a crew (while
the
Tyranids don't look like they'd hold crew).