id keep it 1 3/4, and mid limb begin to taper to 1/2 tips. maybe wider if you are planning on flipping the tips at all.
9 months is enough time for you to get started on it. get it to floor tiller, and weigh it. keep checking on it
for a week or more, finish it when it hasnt lost weight for a week straight. if you work in a shop outdoors, bring your bow inside when
your not working on it, and keep it near the furnace, or under your bed