I had forgotten about this web site, it is worth keeping an eye on it. http://www.familydeeds.org/index.php
The Family Deeds Project provides a large amount of FREE online information to help you with your family history using information contained in the collection of old deeds and documents. They have information on thousands of documents available with new documents being uploaded each week. Whilst in the possession of Family Deeds, wherever possible, the documents are transcribed in full and they hope that at least by passing through their hands, the information in them is preserved and as much of that as possible is provided on this free to view website. Sadly no mention of CUMPSTONs but worth checking back on!