Small CMS with addon extensions/modules

Hi.. I am looking for someone to make me a small CMS solution, with possibility to develop and add modules/extensions. First of, I want to say, I like CMS solutions such as Joomla and Mamboo. I am looking for something similar, but simpler. there are to many core functions and setting not needed for my purposes. I am looking for something that does this Core system: - module based output - possibility to install new extensions (the way Joomla, mamboo etc does it) - Template based - Language file based - WYSIWYG editor - Print page and tell a friend functions (turn on/off for each sub-page in parameters, like joomla, mamboo does it) - Two usergroups, Superadmin and admin/moderator - Only superadmin group are able to login to backend system ([login to view URL] or something) to add/remove extensions, users, edit site config and so on. - Only superadmin can add users and assign usergroup - Admin = advanced user, access to non-vital systems. add sub-pages and link to them, edit menu, access to all extensions exept configuration. - admin/moderator should be able to edit his profile when logged in - basic extension included with core system, simple news publishing component, regular homepage like, add articles and news. module output or something for placage anywhere on main site. Contact extension, contact form that are editable for different needs. Name, email, address, zip, town, text field, drop down for what service the enquire is regarding, how to be in touch (email, mail, phone, sms). and so on. Possibilty to create main sub-pages (10, 50, 100, unlimited) (about us, about our house, howto shop, where to live - U get the picture). How many sub-pages available to superadmin, admin/moderator should be desided in included system file(s). Example: Someone buys this system with 10 sub-pages, he get a complete setup for 10 pages, with no possibility (unless he knows his way around source code, in that case he probably whould make a website himself) to edit a simple config file or with superadmin access to increase number. the option should be hidden. 4 different setups (10,50,100,unlimited) Moving on to the Extensions that not are included in the core system. Extensions needed for this solution. - Pricelist extension (possibility to make pricelists of services) with module for output (editable lists). - Course extension. Event calender. Upcoming courses with possibility to sign up for course for visitors to webpage. Admin/moderator creates next course, with description, duration, place, date, open places and publish. Module with calender to output on main site. Visitors will se upcoming courses and be able to sign up for them, no registering needed. Admin/moderator are able to manually sign people up on courses, each time someone signs up for a course, admin group are notified by email, when course is full, they receive a message telling them to sign up for the next course. - Newsletter extension, plain text and html That was all for now, If you have any questions, pleace PM me. I will try to update further explenations in the clarification board. Regards!