You're once again proving your mastery of the source engine! You can't just do that with a compiled model.
Now you seem like you know something. But it's generally a bad idea. the resizing would really take away any chance of using it with a blockhead model, and the novelty would wear off quite quickly once you figure out they do almost nothing.
Also, im just gonna say this: Port the mininuke :3
That would be insane. More fun than the regular nukes, plus the lag of 20 of them at once! :D
To me, it seems as if you're trying to get a copy of the models quite hard. Just wait.
Ported the horse, needs smoothshading.