You would end up losing money, even with a gpu. Your better of buying a bitcoin miner and even then its not the best idea if electricity costs alot. I wanted to buy a bitcoin miner but ended up forcing myself not to because it was to much of a risk and I might never see a return/break even.
He is going to be pluging in miners to the laptop not mining with the laptop. And to Op as long as your internet connection is good enough the your laptop should be good enough to plug the miners into until you get your desktop. I would not really recommend dumping money in to mining hardware but if you want to do it for fun then all the power to you!