Need Desperate Help With PPC / Ecommerce

So my friend and I signed up for an ecommerce program about a year and a half ago. The program was supposed to last 3 months, with a guaranteed positive ROI after some period of time.

I won't name names (because we finally got a refund), but we got f'ed around for about a year by this guy. The deal was to have a fully functional ecommerce site, which his team would then market properly through PPC, SEO, etc.

We're at the point finally where we have a pretty decent site, however we don't have anyone to market it for us and are pretty clueless as to how to proceed.

Should we just hire a PPC guy to get some traffic going, or do we need a more structured approach? We don't know anything about creating sales funnels, or which products to choose to market, etc etc.

I seems like maybe we need more of a project manager than a PPC expert, but I really don't know. Basically we have a site which is ready to launch, have a few autoresponder emails set up, and just don't know what to do now.

We've probably put about $10k into this total. Thankfully we got $5k back as a refund recently, but we're still down quite a bit.

Also as a note, the site is in the adult niche (sex toys).