If anyone is interested in the first (avyayībhāvānta) volume of Haridīkṣita's Bṛhacchabdaratna, edited by Sitaram Shastri, Banaras, here is the download link from WeTransfer:
The link will be alive till Nov 21, 2016. If anyone has pdfs of other volumes of this work, I would like to know. Best,
Madhav Deshpande
Ann Arbor, Michigan, USA