Don't go in August if you can help it, the Ionian is full of Italians in motor
boats, when they spot a yacht they seem to alter course and zoom across your track. You will spill your drink, normally a passive chap, well good job I don't own a gun, but seriously they are a menace.
If you don't need a 40'er why charter one, most of the anchorages are small and in peak season crowded. You will find life much easier in 32-34', you also get less draught in a smaller boat so increase your options, sailing performance won't be affected that much, after all your on holiday, give your ego a holiday too. Most destinations are shortish day sails
less than 30 miles, by eyeball navigation
so you don't need that much boat speed, you usually can find a lunch stop along the way. You do get highish winds up to force 7 on my visit but in the relatively small area and the shortish duration you don't get large seas. I remember beating to windward, the breeze was off the mainland and very hot and dry, force 7, each wave that soaked me was almost instantly dried, this left salt
crystals on my sunglasses which I constantly had to scrape off and left my shorts rigid with salt
, exhilarating good fun, we don't get that in the North Sea.
Beautiful sailing area and you will love it I'm sure, you will do more motoring than you expect, winds don't get up until late morning so if your planning a long sail starting early you'll be on the iron mains'l, a lot, once up the wind
blows, usually building steadily until they turn off like clockwork in the late afternoon, meaning you always have a lovely tranquil evening and secure night.
Hope this encourages you to go.