XenForo Lite is, well... a lightweight, faux archive style for XenForo. I consider it faux (a lookalike) because it uses only CSS to achieve the archive vibe, as opposed to actually editing core files to create a true archive mode.
Because this is done only with CSS, there are no template edits aside from extra.less. This makes it easy to show/hide elements according to your needs.
Out of the box, XenForo Lite is pretty archive'd up. Almost everything from default XenForo is hidden. However, you can quickly show individual hidden elements by removing them from the editable area in extra.less as desired.
All widgets are hidden with one line of CSS. If you have some widgets that you want to hide but some that you want to display, remove [data-widget-id] and replace with [data-widget-id="X"]. Put the ID of the widget you want to hide in place of X. Repeat for all widgets you want to hide.