A colleague has let me know that the Spanish publisher Moleiro is shortly to publish a facsimile of the British Libary manuscript of the Splendor solis
I received a catalogue from Moliero. Their Splendor Solis facsimile is very expensive at GBP3880 and even with their generous pre-publication 45% discount it is still expensive at GBP2134. The anticipated publication date is June 2010.
Their work is exquisite. They sent me a sample printing of a folio from one of their facsimile Books of Hours. It certainly is, as they describe, "near original reproduction".