Hi,
Thanks very much for your replies. For the avoidance of doubt, when I said Mk3 Delta, I meant the Delta sold in the UK from 2011 to 2013. I'm aware of many cars for sale in Spain and europe on websites such as milanuncios (Spain's biggest car website) and autoscout (for european cars).
However, I wanted to consider the option of buying a RHD UK registered car from a club member, which hopefully would be well looked after, save me the trouble of driving it all the way to Scotland from Spain, have the correct headlights, have the option of keeping it in the UK without needing to re-register it. Having said all that, I might still end up buying one in Spain and turn the journey into a road trip holiday!