Cat Sotogrande its a good area for making your wishes come true. I Have a few friends (1 from Arizona and 2 others from Uk) who teach at the International School of Sotogrande and live in Estepona, you should try to contact with the school because i know they are going to hire more teachers ,because some personal (including two of my friends ) are leaving the job for moving another cities.
Move fast and apply for the job, move here and i you dislike Spain, you always can back Manchester and start a new life again.