RE: what engine?
No, you could use rubber bands and a pop sickle stick as a propeller if that's all you can afford. I,m pretty sure he was gonna try and help you out. He doesn't want your bank account number so he can see how much your worth. He asking how much can you spend. There's a huge price range when it comes to motors. How much do you have to spend on a motor? 1 dollar?, 100 dollars?, 1500.00 dollars? Sorry man, just sounded kinda rude.