To develop a website

Good day.
Interested in the cost of developing the website, preferably on wordpress. The example in the attachment.
The main in plain landing. after login the user sees the Cabinet (the example in the picture). 2 major sections, new goods and my goods. Under new item – submitted private information, with a number of attributes to search (filter on selected check boxes). If the position is paid, falls into the category of My item is already in the clear.
Positions are loaded using excel. The product has a unique attribute, for example code. When loading, the rows with the same code are ignored and not added to the database. When payment is deducted from the balance. The balance is replenished using for example rapid.
The product has the same cost. Should be possible to edit this value.
When registering for the balance of the user is entitled to some amount (appointed).
Each user gets a referral link. If registered and prepaid by Refco, the balance will be credited a fixed amount.
Interested in the cost of development.
If you have questions ask.