Move site from Squarespace to MODx

Move site from Squarespace to MODx. ([login to view URL] [ pw: easwaran ] ) Site is a blog with no e-commerce, no SEO (it's an intranet), no comments, with 400+ pages with over 3,000 photos. All internal links load page into a lightbox function that is a SS plugin so the CSS and Javascript are available for import into MODx if needed. Custom CSS added to SS for text styling can also be moved to MODx. I will export the site to WordPress and then export from WP, producing a XML file with all the text and links and a media file with the photos downloaded from the SS site.