Henshall has two pages of text and illustrations on Cultoquhey cairn in her "Chambered Tombs of Scotland". It's probably the nearest you'll get to a "paper" on anything at Cultoquhey.

If that was the sort of thing you wanted, I could email you a Word scan to mess about with. It's not a great cairn, though.

A potentially more interesting site nearby, ie here
http://uk.multimap.com/map/browse.cgi?grid=NN881241&scale=25,000&title=Monzie+Circle
is
http://www.themodernantiquarian.com/site/4034
http://www.themodernantiquarian.com/site/3269