Leave the rest of the fruit for the birds to enjoy. But later you will need to prune the vine properly which will include removing any ( by then, mummified!) bunches of grapes. Go to websites for the best pruning advice, and videos. Put 'pruning grape vines' into the search engine. But basically, you need to retain a framework of branches that will bear fruit next year, also, you'll need to thin the bunches to get decent fruits and not just lots of small fruits. An absorbing hobby, I suspect!

much obliged

we were suprised at how much fruit there was, so will hopefully be better prepared to make full use of it next year