Like may other societies, ANESFHS are recording the inscriptions from grave stones. The on-line index shows what is available in the booklet for Kintore which you can buy from them.

Given the age of the stone (1748) there may be little information to be had or it could be quite informative - you never know.

There are some church death records available (probably just the main Church of Scotland) but these tend to give very little information and do not cover 1748. See
http://www.genuki.org.uk/big/sct/ABD/Kintore/index.html

Brian