Hello,
on the site papiermodelle.de, there is a (dead) link to another sno-cat, used by the belgians.
LKWs & Co - Papercraft, Basteln, Origami, Bastelbgen und Paper Models zum Ausschneiden
As I recently check, the wayback machine have the pages on archive. As for the designer, I had alreay try to contact, because of a intended polar exploration series in papermodels, but never had a reply.
By the way, your sno-cat is simply fantastic! Very well done indeed!
Best cumpliments,
G_Mendes