I need some edits made to an expression engine website.

General information for the website: Lead Gen Website
Kind of development: Customization of existing website
Description of every page/module: I would like a banner creating saying make up to £628 a year with solar panels and adding to the top and side of every page.
I would like a landing page creating in the same style as another website however it needs to look like the following landing page and landing quote form.
https://www.ukpower.co.uk/solar-panels/free-solar-pv-installation
I would like the following page fixed. http://www.fitariffs.co.uk/faqs/
I would like a clickable telephone number adding to the top right of every page saying to find out more about feed in tariffs call freephone on 0800 0588207
I would like the bottom right Wolfe banner removing from every page and a new banner creating with link adding pointing to https://www.businesselectric.com

On complete separate note. The installation of expression engine seems corrupt and also a multi-site installation. I would like this looked into as I only need www.fitarrifs.co.uk and I need to know I am using the latest installation and everything is secure.
Description of requirements/features: On complete separate note. The installation of expression engine seems corrupt and also a multi-site installation. I would like this looked into as I only need www.fitarrifs.co.uk and I need to know I am using the latest installation and everything is secure.
Extra services needed: Hosting
Extra notes: