Using Spread Betting to Hedge EUR Exposure

I've got a house in Spain that I bought in early 2014 when the exchange rate was 1.22. I’d like to hedge my exposure to EUR back to GBP, especially now that the EUR is stronger than when I bought it. I could mortgage it and convert back to GBP but it’s expensive to mortgage in Spain (c.4% of advance) and I will pay c. 2.5-3% interest, albeit I can invest the cash elsewhere. I’ve also been looking at leveraged ETCs in my SIPP but I believe the volatility of the currencies has the scope to mess up the exercise with the compounding issue. Alternatively, I am considering using a CFD or taking a long term spread betting position. Has anyone got any views on the validity of this approach, and which company would be best to do it with as the exposure I would be taking is significant? Thanks

Using Spread Betting to Hedge EUR Exposure