I would probaly go with a 5.3, 4.7 combo, but you may find a few days overpowered. If you wanna sail Winter or up in Gero you'll definitely need something smaller. Might be worth considering other sails.

I've got a 4.0m ezzy in vgc for sale if you want something smaller

Im pretty much the same weight as you and i have the 5.3 4.7 4.2 combo. If you can afford a skinny get one, i love mine and so does everyone else who has them. If you like the ezzy style sails have a look at Hot Sail Maui. They have one sail, Smack which is like an ezzy (all Xply, pvc window...) but they are really good for light people. Another bonus is that the 5.3 fits on a 400 mast (424 luff) so you should only need one mast for all your sails as if a 4.7 is going to be used most its proberly a good idea to get the right mast for that one. They would be worth checking out www.hotsailsmaui.com/
Anyway thats my two bobs worth, hope it helps