Have your thought about starting an SEO friendly blog? Basically if you go to fiverr.com you might be able to get someone to write 5-10 articles which are SEO friendly which can then be used to generate free traffic for your blog which can then be redirected to your e-com store. Hope this helps! :)
Firstly, great job for setting up your company and getting in leads. Depending on how much the product is, what your margins are, you might be able to hire people on a pure commission basis. It's a great way to leverage other people and also get experts to sell your product. If you like I might know a few people who could do that for you but you'll have to have a solid product, good leads and atleast 30% margin on your product. If you need some help, let me know.