Get my website on page 1 or 2 in Google for 3 keywords

Recently updated my website (www.digitalvisitor.com) & now I need to get the right people to it & get enquiries!

I have 3 keywords I would like to get us on page 1 or 2 for google.co.uk - 'social media agency', 'social media campaigns' & 'social media marketing agency' (however happy to discuss this with you if you feel other keywords would be more beneficial for us).

If you think you are the person for it, please send me a proposal detailing;

1) How you will do this / what techniques you will use?
2) How long you will need to deliver this result?
3) How much it will cost?
4) What reports you will send?

Thanks,
Carla