you can't really put on muscle the way that you want to and lose fat at the same time. Pretty much you can do one or the other. most folks will say to eat alot (but clean) and work out hard and gain the weight - most will be muscle but some will be fat - and then diet down or "cut" to lose the fat while maintaining the muscle. So bulk now - get up to 200 or even more, and then diet down to the leanness that you want. Just don't expect to put on almost 30 pounds of muscle over night - that's a long term goal.