Hi. My name is chance.
I have been developing web sites for 6 years.
I am very familiar with Wordpress, joomla, js,php,css,html5 and jquery,angular js.
Maybe, You can't see the experience of web in my profile, because we have hired some great web developers recently.
I have checked the document.
Based on your requirements, my estimation is about 3000 gbp.
Do you just want to build the frontend website? The website should be mobile responsive site?
Best Regards.
Chance.