Dear Sue,
It really is inspiring to discover you on this webpage. I am the same age and agree with Kate about the "way women of our generation reinvent themselves".
I have just been made redundant and want to get into the job world you have left behind. Mad or what? But the idea of a six month period travelling is sooooo tempting!
I'm sorry I don't have any travel tips or contacts to give you but I will be travelling vicariously through your reports back to us.
All the very best, enviously...!