It's a very good idea. I'm not trying to sound like an expert, it just seems to me like someone would have done it by now. Keep in mind, if you're going to open a business here, it has to be at least 51% owned by a Qatari. I don't know if you will find a Qatari to run a pub with you. Also, I doubt the government will allow you to serve alcohol. Good luck though man.