With a 3/4" inlet, the CFM that puppy will consume is quite large. Because of that, you'll need a fairly large tank (I'm thinking >30 gal) to maintain the CFM without the pressure curve falling on it's nose immediately. Lastly, you'll need to plumb the whistle to the pressure tank via valving that won't restrict flow, either.
Why didn't you spend a few more bucks and get the darned train, too? 