just inherited some property that belonged to my nature and plant loving grandfather. the property was his playground to grow anything and everything he fancied. the problem is that it had been left abandoned for 10 years, and unknown if he pruned or trimed anything before that. there is a large grape vine that is climbing over a 15' tall apple tree, to the point it will kill out the apple tree. I would like to save both the apple tree and the grape vine if I can, but if I have to choose - the tree will go. these are new plants to me and I havent even learned the yearly maintence I will need to do, so please thoroughly explain to a newbie how I can get the grape vine off the apple tree without damaging it, and what I need to do to help it survive including what it should climb on and how...most info online has people working with small new plants and this one is waaay beyond that! thanks!