Hey Zac, it's been a while no? Hope things are good on your end. I know what you mean about being jealous of Vaaish and his proliferation of models. I'd be happy if I could manage half as much time these days!
The Viper wasn't inspiration per se. My main aim was to do something that had a very simple structure that would be fairly sturdy at that tiny scale. Even so, it did end up looking a lot like a Viper in the end.
The bitz used: The kroot gun barrels are an obvious one, the canopy is from a loose mortar round, the wing ordinance is from an ork shoota ammo belt and the engine nozzels are from an obscure and tiny bit from an antenna on the IG tank comm array, which in turn, came from the Apoc Command sprue.
Everything else was just plasticard. It was definitely the most detailed thing I've attempted at that scale, but I'm happy with the way it turned out.