Business plan

Hi, I am from Skybird Inc. Skybird Inc is a watch distribution house. We sell mid luxury watch brands like Maserati, Swiss Military By Chrono, Jacques Lemans, Jowissa and Wolf on Myntra, Tata cliq, Amazon and Flipkart. We have been sellers on these marketplaces for more than 4.5 years now. We have also sold products of these brands on offline marketplaces like Ethos, Just in time, Just In Vogue to name a few. We are now looking to expand. So we are planning to get to create- a mid luxury handbag brand for women and sell it on these online marketplaces along with watches. These bags would be in the price range of INR 1500-4500. This business plan will help us find suppliers and if things go well some of these suppliers have also expressed an interest invest in our business as well after 6-8 months. So we want someone who can help us understand this category even better, research on the pros and cons and help us make a very detailed business plan asap. Thanks!