I totally agree on the latter point. Before you code anything, as your primary goal here is making money, get an Adwords voucher and see if you can get traffic

I totally agree on the latter point. Before you code anything, as your primary goal here is making money, get an Adwords voucher and see if you can get traffic to your site from ads. If people are clicking, then there's probably something there. If nobody visits your site after a bit of promotion, what's to say customers will visit when there is actually a product there? You can go right as far as the credit card signup page, depending on how you morally view misleading potential customers.