I am looking for Content writing and SEO for my website

I am looking for content writing for my website. I am director of an IT company in Leeds delivering projects for Mobile apps and Website development.

I have not registered a domain, but these are possible options. Domain names
1) vpn-software-ltd.co.uk
2) ios-android-apps.co.uk
3) android-ios-apps.co.uk

Please suggest which will be a good domain to book looking at SEO for following Key words -
Android ios iphone ipad mobile app design development leeds yorkshire Manchester Birmingham

I want the project to be fixed price based on the contents provided and please let me know how much time it will take to deliver me the contents. I will manage the contents myself, so you can deliver in same format with specific keywords for each page.