Hi guys. Just wanted to let you know of a way I was able to save all of my clients 600+ posts + pictures. It is of course not the cleanest solution and I don't think I can use this file to export the posts to any other platform, but it was a really easy way to "back them up". All i did was create a new page where I placed all of the blog posts so far (with the BC blog post tag, with an 8000 post limit). Then I went to the page and after it finished loading, I saved the page, using chrome, as a "Webpage, Complete". This will download the html file along with a folder which contains all of the assets of that page.
Hope this helps someone.