In reply to freeflyer:
>Looks like there are a good few lesser things to go for.
Yes indeed. My IGN map has just arrived and on the edge of the page is Le Pic des Tres Estelles, 2099m , accessible from Col de Mantet, 1761 m,. That sounds a bit more like it.
Many thanks to all the UKCers who have replied with positive encouragement but it has actually confirmed my original thoughts that I would be massively out of my depth and that I should choose something less demanding ( substantially so).
Foolishly, up until reading Goatee's article I hadn't even considered the possibility of snow in late May so that's another very useful tip.