PhP website

Hello, I would like to have bid for a school website (we already have domain name and webhosting) in which I would like to have the following things: 1. good looking 4-5 html same template pages so you need to make one page only and can copy and paste different material in those pages (material will be provided) with appropriate links e.g. front page for school intro, teachers' list, departments' list etc. template could be same for all pages with a little bit colour difference here and there for good looks for different links and template copy also for future page adding. 2. Now the difficult part:in this website apart from simple 4-5 html pages i would like to have one php/mysql application (that would be great if same template with different colour schemes )which will be like phpnuke or postnuke content management system but most of the facilities on phpnuke or postnuke are useless for us except article writing and forums so it should be a unique php script with single log in system and should have a good alumni members' details application year wise which they can update themselves (like phpalumni but not that crude, should be presentable to attract members to donate funds for school development, brilliant if same looks like the whole website), student list year wise and update facility, article writing, photogallery (we wish to have photogallery like [login to view URL]), forums (any), phpauctions, weblinks, chatting, secure online alumni donation system (paypal,credit,debit) everything at one place in one script with single log in system and same looks with different colours and update facilities to add other things like online courses etc. and should not be like phpnuke or postnuke where there are no facilities for photogallery, auctions, alumni details etc. our budget is tight $30-50 only.I know it is very less but i am not sure how easy it is to make such a script with everything at one place with such a single login user management system so not sure about the budget also but definitely school is not ready to spend more than $100-$150 that also the committee will decide in future if won't get bid less than $50 but we welcome your bids whatever you think is right for future contact with [login to view URL] you have understood the whole project. thanks!