Integrate PHP & perl scripts

Looking for a price range on how much it would cost to have someone integrate all the PHP and Perl user databases on my website so that the user only has to login once, if possible. Scripts on site include: PHPBB2 (Php) PerlDesk (Perl) 4Images Gallery (Php) Hivemail (Php) PhpAuction (Php) OR EveryAuction (Perl) E-Classifieds (Perl) Possibly others. Any information on the scope and cost of this type of project would be appreciated. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform Unix