I need an effective,economical Google adwords campaign setting up.

I am setting up a leather renovation and repair business,and need to have an effective adwords campaign set up that will get me a good ROI using the correct keywords and specific geographical locations. As yet my new website is not filled with content;with the right keywords from Google adwords I want to ensure all pages and landing apges are fully optimised for the right search terms. I need a new account setting up,with the most beneficial Google credit offer available for a new account,ie the £150 or £75 credit. My monthly spend will be circa £150 on Adwords.