You can change the theme of website.
You just need promote site and drive the traffic.
This is online business and you need the one domain name for this.
There is no need of web space.
If you drive 100 user registration daily them you can make $120 to $150 daily .
In month you able to drive 3000 to 5000 user registration then you monthly income will come around $2500 to $6000.
It dependent on user subscription plan,1 month ,3 month,6 month.
You can set charges as you wanted.
Start your business now.
Ask demo website.