I'm thinking a month, maybe, if you work on it a LOT! First plane isn't going to be as easy as the second. A month may still be pushing it. Covering alone is going to take a couple days for you. Just working with the glues, learning to cut and sand is going to take extra time. But here's the rub.. If you ever want to build a really nice plane you are going to have to start somewhere to learn. If the the first plane you ever try to build is a scale Maratuka kit you aren't going to have fun with it.

P.S. I'm starting a SE this week! It's my 4th kit.