Usually 4-6 weeks or so in summer, 2-3 weeks or so in winter (harder to predict weather), but lots of times I can just “fit” you into any given week, with not too much notice because I am self-employed. So just call and find out how my schedule looks.
You must have a PPL with at least 100 hours for me to recommend you. Recent flying experience is preferred – so get out there and fly a bit before coming to Boise, things will go better for you! Try to fly some of the basic maneuvers in the PTS with the same standards applicable, you’ll be surprised how much you have forgotten.