20,000 foot Sea Monster

It has come to my attention that creating a giant monster like Godzilla would be essential for creating fear among the populace. Unfortunately, it is impossible to breed such a creature. Instead, I am considering created a massive artilleray vehicle capable of launching 10 SCUD missiles and once, and when properly deployed it can launch a nuclear warhead. Also, like that of city-crushing monsters, it can knock people and cars 100s of miles with its gigantic feet and stomp on buildings. Also, it can eat people and convert their organs to pure fuel. Now I just need 500,000,000,000 dollars.