What a cool idea!! Great advice in here already, just wanted to throw this thought into the mix: Because it will take a lot of your time, and because it's something fairly specialized, you are likely going to need to have multiple outlets for income. So for example, hosting parties, personalized trips to the shops, continue selling some stuff on ebay, possibly opening an etsy shop for vintage stuff, having a more curated selection in a small online shop, offering additional custom services like dying either customer items or purchased items, etc. Especially when starting out you'll likely need a few outlets then as you become more well known and get some stability and experience, you can then eliminate or expand those that are working the best.