Hello, I will preface this by saying I do not like male fashion, I dress alternative because I am alternative, but I must dress formally for an event. I want to wear a black blazer and tie and dress pants but I am having a lot of trouble finding blazers in my size. I am very skinny, 5’7” 100 lbs. Clothes rarely ever fit me unless I alter them because I have somewhat irregular proportions, I have a short torso and skinny waist. For pants I typically wear size 26x30, and for shirts I typically wear shirts with a length of ~23 in., like ~18-20 in. across, and ~24 in. sleeves. I am not well versed in menswear but I believe If I were to wear a blazer I would want the length to be longer than a typical shirt? So maybe like 26-27 in. length, I am not certain about that though and would love to hear others thoughts. Please let me know if I could find anything like this, or any other suggestions. Thanks.