Avon of office products

I have been let down by a developer. a half finished project started in open cart. I want to stick with open cart. the site will start as an office products site..but it must be able to handle "avon" type reps selling the products; hence it needs to track what each "avon reps" customers' order; and calculate and monitor downline commission payments. The site will expand via Affiliate Window to sell other goods like electronics and toys; fashion I need an ambitious programmer who can also design a bit who wants to build a great site. As Sales Director I took a £200k office products company to £8m for someone else, now going to do it for my self. If you can deliver a great site; and exceed my expectations I am open to profit share options.