It took me about 6 months of cutting joinery and about 3 weeks to raise the frame. It was my first also and it was a 32x40 cape. I can't say I was completely alone, my father helped with a lot of the busy work, like cutting dovetails and brace mortises.
Just order the timber and start cutting. The time from when you recieve the timber to when you stand the frame probably won't be an issue. There was a recent post on how long to stack out the lumber before cutting. Look back a couple of weeks in this forum, there's were some differing opinions. That post will probably answer your question.
