I have contacted over 10 distributors of various products. Every time they demand an offline presence to sell online. My interest is in selling the products via eBay and, then a month later, also an ecommerce store.
I always ask why they require an offline store, and just get a response like, "because that's what we require".
So it seems the only way to sell most products (at least here in Australia) is to have an offline store. My two ideas to get around that were to 1) lie about an offline store and hope 2) speak with the owner of a partially related store and partnering with him or getting him in on the trickery.