Looking for easy site builder or Joomla template

Want to build a site eigher like [login to view URL] or [login to view URL] Need someone gives me lowest price to help me get simplest as possible. I will enter all data myself. 1. Project one like [login to view URL] requirement: a. Ecommerce: pay the questions with 3 options: Option one: no pay (promotion, or newer user first time) Option two: pay $5 or $10 (no $1, $3 or $8......) depend on the questions. everyone has the right to answer the questions. Option three: pay $25, $50, $75 (professionals only) b. User login: * Free membership login: can see the questions from others, but can answer the questions. also can post questions. * Silver membership: Pay yearly membership: can answer the questions and get pay. ($4 or $8) * Golden yearly membership: (Professionals or experience users-prove) can answer the questions and get pay ($20, $40 and $60) [login to view URL] a Joomla template (prefer) or a easy site builder to do the job. I need to take the site easy to modify myself late on. c. People must login to see the questions or answer the questions. d. After answer the questions: there is feedback for the question and rate the service level (1-5 star) 2. Project [login to view URL] is also the same requirement. or using www.freelancer.com web site seting idea to do my project. thanks for reading. Other jobs are: [login to view URL]