Thinking of bringing my business to Torrevieja

Hi all,
I currently live in England with my boyfriend who lived in Torrevieja for most of his life.
We're thinking of possible opportunities for us in Torrevieja as we both are in the fitness and nutrition industry.
I personally run a freelance personal training business locally to me in an area that isn't wealthy at all, by focussing on two types of clients. Women being one group of clients and doctors referrals/cardiac rehabilitation patients the other. I also run classes and nutritional education courses too and would be looking to bring all of this with me.
Cutting to the chase, what are my chances of survival? I'm not afraid of hard work as I've had to build up here in my little village in England but I also understand that my services are a luxury not a necessity, except my gp and cardiac side which I'd look to work with local gps, clinics and hospitals if that's possible?
Any advice would be very much appreciated!
Sarah.