THE REPUBLIC OF GEORGIA is renovating its Manuscript Institute, which has a very important collection:

"We can surprise the whole world!": Saakashvili calls for construction of new manuscript museum
By Eka Basilaia (in The Messenger)

A modern and beautiful museum built according to European standards will be set up in the centre of Tbilisi soon, according to a decree signed by President Saakashvili at the Korneli Kekelidze State Institute of Manuscripts on Friday.

Saakashvili visited the manuscript institute and publicly called for an improvement of the institute's facilities and resources. To this end, the President has proposed building a new branch of the institute in the city centre.

[...]

The construction of the museum building will start in a year's time and it will be equipped with all the technology and apparatuses needed for keeping and displaying manuscripts and carrying out scientific research.

The collection contains approximately 10,000 Georgian manuscripts, 60,000 Georgian historical documents, 4,000 manuscripts in Greek, Hebrew, Syrian, Armenian, Arabic, Persian, Turkish, and Slavic languages, while 5,000 historical documents in these languages are preserved. 20,000 documents in different languages from the personal archives of distinguished Caucasian writers and scientists of the 19th and 20th centuries are also held in the museum.

[...]

Sounds like a good place to look for more Old Testament pseudepigrapha.