The Internet holds many surprises, and one of them is a searchable database associated with the book "Cloth and Clothing in Early Anglo-Saxon England, AD 450-700" (2007) by Penelope Walton
Rogers: http://ads.ahds.ac.uk/catalogue/archive/clothing_eh_2007/index.cfm

This covers the period AD 450-700 and includes 3802 records of textiles from 162 Anglo-Saxon cemeteries, searchable by using drop-down menus. I have only taken a very short look at it, and it will probably be most useful if you own the book the database goes with, but it might come in handy anyways...