You have to know about BTC, WMZ, PM and paypal before going to take a bid.
You can find any suitable BTC , WMZ , PM , and paypal API and integrate to my site.
I will provide the html page.
In my site, there are 3 types of user :
Anonymous, Nomal user, and Vip User.
+ No need to take care “Anonymous”.
+ A normal user if want to become a vip user have to deposit a number of amount of money (BTC, BTC-ecode,WMZ…)
+ The payment accept automatically and then after successfully pay for VIP, user will become VIP user (set the VIP field to 1 in the database) and redirect user to a page confirm the payment and send an email with the information about the transaction.
+ Design a field in database that log the expired day of VIP(6 months or 1 years) with the date user make a payment.
I can only pay under 500$ for this because its not a difficult task.