Greetings.
I have over 10 years of experience in web development, including commercial and non-commercial projects, web applications, CMS (Joomla, Wordpress, etc.) based sites, Symfony 3 based applications and many many more. I've mastered probably every aspect of web development, from concept phase up to final product, including many different technologies and languages like CSS, HTML, PHP, JavaScript, C++, LUA, jQuery etc. I also got some nice skills when it comes to web design and have mastered Bootstrap and Foundtation frameworks. There is probably no task I wouldn't handle so I can ensure you that I will provide the best possible result.
Price is always negotiable, so be sure to send me some more details about your project.
Answers for your questions:
1. Yes, it is possible to display prices only after login.
2. Yes, it is possible to set slightly different prices per customer.
Best regards.