Stop trying to hard to label your style and dress in what fits you well and makes you look better. If you're consistently trying to fit your "preppy" look, you lose out on what truly complements you best.
As the other two gentleman suggested, use the search feature, specifically for rules for the tall and skinny guy. Second, for you and every other new member...you're not that tall. You're 6'1", which is fairly tall, but still on the border between R and L, depending on brand.
You look like a kid playing dress-up in his father's clothing. The picture quality is pretty poor, but it at least looks to fit you in the shoulders. Theoretically, everything that you need done: suppression, tapering, hemming, is possible, it will just be fairly expensive.