In reply to purple sue:
Have you tried going direct to Perkins Slade? I know a number of instructors with UK based awards have used Perkins Slade to get insurance to cover them working overseas. The cost is higher and the process longer, but it did used to be possible.
Hope the long Spanish trip earlier this year went well and we can catch up before you depart for more exotic climes / climbs
TJB.
P.S Who will look after your van whilst you are away?