I wouldn't consider my reply as being rude tbh. But this is see trough. He can't provide any of his previous work. He comes and offers his service with a post count of 1. He doesn't even have to link does he?
I know how to build a spaceship, but for obvious reasons I can't provide any proof of that.
Have you ever bought something that you've never seen until you paid for it? No? That's good, because no1 will.