Wordpress Theme Edits

Hello, I am looking for assistance in making three edits to my Wordpress theme, found at [login to view URL] (Liquidfolio theme, purchased on Themeforest). First, for the "post" (e.g., [login to view URL]) and "page" (e.g., [login to view URL]), I would like for the content to span the width of the page, so there is no large white space or comments box to the right of the content. (Note, however, I do not want this to affect the width of the posts on the main page, see [login to view URL]). Second, for the "post" pages, I would like to then move the comments box to the bottom of the post, rather than the current position to the right of the content. Third, this theme comes with an option to make "Gallery" (posts with slider at the top) and "Video" (posts with video at the top) posts. The effect, as seen on the sample theme page, ([login to view URL]) is to have a slider or video in the description of the post on the main page. However, this slider or video will also appear on the post page itself. (See [login to view URL] and [login to view URL]). I would like to change the code for the Gallery and Video template so the slider/video will still appear on the main page, but will not then appear on the top of the post itself. If possible, please provide a lump estimate for all three tasks, and then a separate estimate for tasks 1 and 2 alone. Thanks!