Wow, what brilliant responses, far more than I was expecting and thanks to everyone above for your guidance. It's somewhat unnerving to post on new forums, so I'm doubly appreciative of the replies.
My summary from the above would be;
- the subject of colour schemes is a mine field
- there is no holy grail www.rightcolourforanysituation.com website
- I'll use RLM65/70/71 which sounds as good as it gets for summer '43
thanks again, Mark