Web Store Project

I need a sales site with a minimum of purchases required! I can do the web marketing part on Wordpress and put the site online. It will be up to you to add the minimum smart part required (supply and demand) Subscription (free member and paying member) Basically I make furniture, but I would like to be able to put a minimum required before starting production. So, I have to be able to display the furniture with a description, the price with a mimium of purchases by members, once the number reached, I start production. When a member has submitted his number, 1,2,3, or 25 ... he will have to pay a part, so everything must be flexible as site management. Must be able to pay by paypal or credit card. This will be sold locally, ie just in Canada. For example, I make a chair, the price will be $ 150. The minimum required will be 50 purchases before production can begin. Once the number acquired, an icon will turn green and send an email to members automatically with information that I will determine. We must be able to see the total purchases in real time, not the members. Example: Minimum required: 50 Currently: 37 If you speak French, that would be an asset, but it is not mandatory. I should be able to see the development of the site as it progresses. He will have a delivery time, by cons I will give the ok only in the spring or a little before. As I must know if it is feasible, the price, etc. Steve