Joomla Menu & Template Changes

Looking for someone with Joomla template and menu editing skills.

I would like the size of the right module in my Joomla template
amending.

I also have a menu item appearing on the menu for my site which is
not showing in my Joomla administration back end, which needs
removing from the menu.

I also need some work doing on some sub-menus in Joomla. I have
a secondary verticle menu on my website, which appears down the
left hand side of the display. I have some new pages to add to
this submenu. When I attach them to this submenu the pages
load but the submenu disappears.

If you are skilled in Joomla menus and templates, I would
be very helpful for assistance.

I would like the person who does this work to make the changes
on a test version of my website, and document the changes
needed. I would then apply the changes to the live website,
based on that documentation.